EX-99.1 2 caledonia6k07072011.htm TECHNICAL REPORT ES Filed by Filing Services Canada Inc. 403-717-3898


  J2225

NI 43 101 Technical Report on the Blanket Gold Mine, Zimbabwe

Prepared by The MSA Group on behalf of:

Caledonia Mining Corporation

 

 

 

 

 

 

 

 

 

 

 

 

 


J2225

NI 43 101 TechnicalReporton the Blanket Gold Mine, Zimbabwe

Prepared by The MSA Group on behalf of: Caledonia Mining Corporation

Authors: Bruno Bvirakare Senior Project Geologist    BSc, PrSciNat 
                       Justin Glanvill    Associate Consultant    BSc (Hons), GDE, MGSSA, PrSciNat 
                       Joel Mungoshi    Associate Consultant    HND, BSc (Hons) Met Eng, MDP, MBL, MSAIMM 
                       John Sexton    Associate Consultant    BSc, BCom, MBL 
                       Vaughn Duke    Associate Consultant    PrEng, PMP, BSc Min Eng (Hons), MBA, FSAIMM, 
            MECSA, MPMI, MMASA 
 
 
Date:    28 June 2011     
 
 
Project Code:    J2225         
 
 
Copies:    Caledonia Mining Corporation    (2) 
    The MSA Group    (1) 


Primary Author Bruno Bvirakare

Supervising Principal Mike Robertson

This document has been prepared for the exclusive use of Blanket Mine (1983) (Private) Limited for and on behalf of its parent company Caledonia Mining Corporation (Caledonia) on the basis of instructions, information and data supplied by them.

 

 

 

 


  Table of Contents
1    Summary        1 
2    Introduction        4 
    2.1    Scope of Work    4 
    2.2    Principal Sources of Information    4 
    2.3    Qualifications, Experience and Independence    5 
    2.4    Current Personal Inspection    6 
    2.5    Purpose of the Technical Report    6 
3    Reliance on Other Experts    7 
4    Property Description and Location    8 
5    Accessibility, Climate, Local Resources, Infrastructure and Physiography    16 
    5.1    Physiography and Vegetation    16 
    5.2    Access        17 
    5.3    Climate        17 
    5.4    Local Resources and Infrastructure    17 
6    History        19 
7    Geological Setting    24 
    7.1    Regional Geology    24 
    7.2    Local Geology    25 
    7.3    Property Geology    28 
8    Deposit Types    31 
    8.1    Characteristics of the Blanket Mine Deposits    31 
    8.2    Orogenic Gold Deposits    34 
9    Mineralisation    38 
    9.1    Development and Style of Mineralisation    38 
        9.1.1    Disseminated Sulphide Replacement Type Mineralisation    38 
        9.1.2    Quartz Reef Mineralisation    39 
        9.1.3    Jethro    40 
        9.1.4    Blanket Section    40 
        9.1.5    AR Orebodies    42 
        9.1.6    Eroica    43 
        9.1.7    Lima    44 
10    Exploration        46 
11    Drilling        47 
    11.1    On-Mine Drilling    47 
12    Sampling Method and Approach    49 
    12.1    Channel and Percussion Drill Sludge Samples    49 
    12.2    Diamond Drill Core Sampling    50 
    12.3    Sample Handling and Monitoring    50 

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13    Sample Preparation, Analyses and Security    52 
    13.1    Sample Preparation, Analyses and Security    52 
    13.2    Statement of Opinion on the Sample Preparation, Security and Analysis    52 
14    Data Verification    55 
15    Adjacent Properties    57 
    15.1    Vubachikwe    57 
16    Mineral Processing and Metallurgical Testing    59 
    16.1    Metallurgical Processing    59 
    16.2    Metallurgical Testing    60 
17    Mineral Resource and Mineral Reserve Estimates    62 
    17.1    Grade Data    62 
    17.2    Grade analysis    62 
    17.3    Density data and Analysis    64 
    17.4    Recovery and Modifying Factors    65 
        17.4.1    Mining Dilution    65 
        17.4.2    Recovery    65 
        17.4.3    Summary of Cut-offs and Recovery Factors    66 
    17.5    Resource Classification    67 
        17.5.1    Inferred Mineral Resources    67 
        17.5.2    Indicated Mineral Resources    67 
        17.5.3    Measured Mineral Resources    68 
    17.6    Mineral Resource Statement    68 
        17.6.1    2009 Mineral Resources    68 
        17.6.2    2010 Mineral Resources    71 
    17.7    Mineral Reserve Estimate    76 
        17.7.1    2009 Mineral Reserves    76 
        17.7.2    2010 Reserves    78 
18    Other Relevant Data and Information    81 
19    Interpretation and Conclusions    82 
    19.1    Project Risks    82 
        19.1.1    Sampling    82 
        19.1.2    Assay    82 
        19.1.3    Mineral Resources    82 
    19.2    Project Opportunities    83 
20    Recommendations    84 
    20.1    Sampling and Resource    84 
21    References        85 
22    Date and Signature Page    87 
23    Additional Requirements for Technical Reports on Development Properties and Production 
    Properties        91 
    23.1    Mining Operations    91 
        23.1.1    Mining Process    91 
        23.1.2    Mining Infrastructure and Equipment    95 
        23.1.3    Planning    96 
 


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    23.1.4    Modifying Factors    96
    23.1.5    General comments    97
23.2    Recoverability    97
23.3    Markets        98
23.4    Contracts    99
23.5    Environmental Considerations    99
    23.5.1    Closure Plan    101
23.6    Zimbabwe Taxes    101
23.7    Capital and Operating Cost Estimates (Real Terms)    102
23.8    Economic Analysis    103
23.9    Mine Life    108

  List of Tables
   
Table 9-1 Displacement levels of disseminated sulphide replacement type ore bodies by the Blanket Quartz Reef (data source: Blanket Mine, 2009)    40
Table 17-1 Cut-off grades used for the December 2010 Mineral Reserves and Mineral Resources Update    66
Table 17-2 Upper cut-off grades and dilution factors used for the December 2010 Mineral Reserves and Mineral Resources Update     66
Table 17-3 Indicated Mineral Resources for Blanket Mine as at 31 December 2009     69
Table 17-4 Inferred Mineral Resources for Blanket Mine as at 31 December 2009     70
Table 17-5 Summary of Mineral Resources as at 31 December 2009 (Source: Blanket Mine, 2011)    71
Table 17-6 Indicated Mineral Resources for Blanket Mine as at 31 December 2010     72
Table 17-7 Inferred Mineral Resources for Blanket Mine as at 31 December 2010    73
Table 17-8 Summary of Mineral Resources as at 31 December 2010 (Source: Blanket Mine, 2011)   74
Table 17-9 Mineral Reserves as at 31 December 2009     77
Table 17-10 Mineral Inventory as at 31 December 2009     78
Table 17-11 Mineral Reserves as at 31 December 2010     79
Table 17-12 Mineral Inventory as at 31 December 2010     80
Table 23-1 Annual Production Results     91
Table 23-2 Gold recoveries since 2008     97
Table 23-3 Capital Cost Estimates (Real)  102
Table 23-4 Operating Cost Estimates (Real)  102
Table 23-5 Mineral Reserves as at 31 December 2010  103
Table 23-6 Financial Inputs and Results    106

 

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Table 23-7 NPV’s of Project    107
Table 23-8 Sensitivity of NPV’s to Changes in Gold Price    108
 
List of Figures     
 
Figure 4-1 Map showing the location of the Blanket Mine in south-western Zimbabwe    8 
Figure 4-2 The Blanket Mine and mill complex    9 
Figure 4-3 Map showing the area covered by Blanket Mine’s Mining Lease application (2006)    10 
Figure 4-4 Blanket Mine claims in the Gwanda area    11 
Figure 4-5 Old claims beacon at the Blanket Mine    13 
Figure 4-6 Penstock Tailings Dam    13 
Figure 4-7 General surface layout of the Blanket Mine (Source: Blanket Mine)    14 
Figure 5-1 Blanket Mine setting showing shaft infrastructure (Source: www.caledoniamining.com)    16 
Figure 5-2 Blanket Mine village    16 
Figure 6-1 Summary of production at Blanket Mine to December 2010 (Blanket Mine, 2011)    20 
Figure 6-2 Number 4 shaft at Blanket Mine    21 
Figure 6-3 Number 4 shaft hoist room at Blanket Mine    21 
Figure 6-4 Genset and Genset shed at Blanket Mine    22 
Figure 7-1 Simplified Geological Map of Zimbabwe showing the location of the Blanket Mine    24 
Figure 7-2 Regional geology of the Gwanda Greenstone Belt and location of the Blanket Mine Claims    26 
Figure 7-3 Stratigraphic sequence in the vicinity of Blanket Mine (Source: AGS, 2006)    28 
Figure 7-4 Locality plan of workings in the Blanket Mine production area (AGS, 2006)  30
Figure 8-1 Sketch map showing the relative location of the series of deposits comprising the Blanket Mine 
(Source: Blanket Mine, 2009) 		32
Figure 8-2 A north south section showing the relative location of the series of deposits comprising the Blanket Mine 
(Source: Blanket Mine, 2009) 		33
Figure 8-3 Schematic representation of mesothermal, intrusion-related and epithermal gold deposits showing the inferred crustal level of gold deposition 
(Dubé and Gosselin, 2005) 		35
Figure 8-4 Grade-tonnage plot for Canadian and global world class orogenic gold deposits (Dubé and Gosselin, 2005) 37
Figure 9-1 Plan view showing displacement of ore body 2 by the Blanket Quartz Reef (Source: Blanket Mine, 2009) 41
 

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Figure 9-2 Profile view showing displacement of ore body 2 by the Blanket Quartz Reef (Source: Blanket Mine, 2009) 41
Figure 9-3 AR Main ore  43
Figure 9-4 AR South ore at Blanket Mine  43
Figure 9-5 Eroica ore at Blanket Mine  44
Figure 9-6 Lima ore at Blanket Mine  45
Figure 11-1 Plans Showing Typical Exploration Drilling from the Main Haulage (Source: AGS, 2006)  48
Figure 12-1 Location of diamond core, chip and sludge sampling at Blanket Mine (Source: Blanket Mine) 50
Figure 13-1 Explanation of accuracy versus precision 53
Figure 15-1 Properties adjacent to Blanket Mine  57
Figure 16-1 Process Plant Flow Sheet  60
Figure 17-1 Assay plot with development showing the manually constructed outline of a mineralised domain 63
Figure 17-2 Example of the manual calculation output for the mineralised domain shown in Figure 17-1 64
Figure 17-3 Long section of Blanket Mine showing the December 2010 Mineral Resources and Mineral Reserves 75
Figure 23-1 Typical Underhand Stoping Method (Not to scale)  93
Figure 23-2 Typical Shrinkage Stoping Method (Not to scale)  93
Figure 23-4 Chart of the gold price between 2005 and 2011, and forecast to 2015  98
Figure 23-5 Figure description  107
Figure 23-6 Monthly Cash Flow (Real)  107

 

List of Appendices     
 
Appendix 1 :    Glossary of Technical Terms     
Appendix 2 :    Certificates of Qualified Persons     
Appendix 3 :    Blanket Mine Claims (Blanket Mine (1983) (Pvt) Ltd)     
Appendix 4:    Production History of Blanket Mine     
Appendix 5:    Certificate of Accreditation – Antech Laboratories (Pty) Ltd     


 

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1      SUMMARY

  Overview

The Blanket Gold Mine is an operating gold mining venture owned by Caledonia Mining Corporation and is situated approximately 130 km to the south of Bulawayo, in south-western Zimbabwe.

The mine has been in operation since 1906 and has produced 1 073 000 ounces of gold since that time. The Blanket Mine property comprises 225 blocks of claims covering an area of 2 540 ha, and operates under a Special Licence (No. 5030) which was issued under the Mines and Minerals Act of 1961 (Chapter 21:05).

The Blanket Mine is situated on the north-western limb of the Gwanda Greenstone Belt, along strike from several other gold deposits and is one of the few remaining producing gold mines out of the approximately 268 mines once worked in the Gwanda belt.

The geological setting is dominated by a basal Felsic Unit comprising quartz schists and quartz-sericite schists, overlain by the Mafic Unit comprising a lower zone of ultramafic rocks and banded iron formations and an upper zone of massive to pillowed lavas with intercalated sediments. A low-angle transgressive shear zone up to 50 m wide cuts through the Mafic Unit and is the locus of the gold ore bodies. The Blanket Mine comprises a series of deposits along a strike length of about 3 km, ranging from Jethro in the south, through Blanket Section, Feudal, AR South, AR Main, Sheet, Eroica and Lima.

Mineralisation occurs in near-vertical shoots along an approximate north southaxis. Two main types of mineralisation are recognised, namely disseminated sulphide replacement (DSR) type mineralisation forming the bulk of the orebodies, and gold-bearing quartz-filled shear zones.

Mineral Resources and Mineral Reserves

The Mineral Resources as at 31 December 2010 were as follows:

Summary of Mineral Resources             
 
Property:    Blanket Mine                 
Date:    31-Dec-10                 
Gold Price:    US$1100/oz                 
Silver Price:                     
 
Reserve Summary for US$1100/oz             
 
Classification    tonnes    grade    Au ounces    grade    Ag ounces 
    (x 1,000)    (Au g/t)    (x 1,000)    (Ag g/t)    (x 1,000) 
Measured    -    -    -    -    - 
Indicated    510.0    3.79    62.1    -    - 
TOTAL    510.0    3.79    62.1    -    - 
Inferred    2,408.2    5.27    408.0    -    - 
TOTAL    2,918.2    5.01    470.2    -    - 
 
Notes:                     
Resources to be reported exclusive of reserves         

 

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The Mineral Reserves as at 31 December 2010 were as follows:

Summary of Mineral Reserves             
 
Property:    Blanket Mine             
Date:    31-Dec-10                 
Gold Price:    US$1100/oz             
Silver Price:                     
 
Reserve Summary for US$1100/oz             
 
Classification tonnes    grade    Au ounces    grade    Ag ounces 
    (x 1,000)    (Au g/t)    (x 1,000)    (Ag g/t)    (x 1,000) 
Proven    1,326.1    4.02    171.4    -    - 
Stockpiles    -    -    -    -    - 
Subtotal    1,326.1    4.02    171.4    -    - 
Probable    2,513.7    3.66    295.8    -    - 
TOTAL    3,839.8    3.78    467.2    -    - 

Please note that as per SRK recommendations of 2002, pillars at 50% discount are included in proven.

Project Risks

The definition of Mineral Resources using manual interpretation of the sampling data and the geologists’ orebody knowledge is considered reasonable. However, the lack of 3D visualisation in structurally complex orebodies such as those at Blanket does raise some concerns around geotechnical stability of the stopes and associated development as well as the volumes of the Mineral Resources as the assay footprint is projected 7.5m above and below the levels. Arguably 3D models have a similar degree of extrapolation and since the operation is generally functioning well using this method, there is no immediate point of concern with the volume definition.

The use of length weighted grade calculations for resource estimation is not ideal as it can result in severe conditional bias; it ignores the spatial relationship of the data, and is affected by clustering of values in high grade domains. While this method is not ideal, it may be used to declare global in situ Mineral Resources; however local estimation at a level-by-level basis should be avoided. However, the fact that the mine is achieving good reconciliation factors (Mine Call) using this estimation method speaks to the reasonability of the methodology within the context of this mine.

The use of sludge holes to generate assay data for use in resource estimation could result in the possibility of fines loss during sample capture and resultant under-reporting of grade. Further, the mixing of different sample sizes in resource estimation results in sample support induced errors. Improvements in the sampling methodology are suggested. The lack of a best practise quality assurance and quality control (QAQC) program at Blanket potentially undermines confidence in the assay database. Improvements in QAQC are recommended, within the restrictions imposed by the Zimbabwean legislation, such as a ban on the export of samples.

 

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Project Opportunities

The increase in the gold price remains an important opportunity for the Blanket Mine property. The increased revenue will provide necessary funds for exploration on site from underground platforms to increase the resource base. The Zimbabwean economy has been dollarized such that the hyper inflationary regiment that was previously in effect has eased off. The marketing of gold in Zimbabwe has been relaxed with direct export now permitted. Blanket Nine now receives proceeds from sell at spot gold price in USD and can retain 100% in hard currency to pay for operations. Most inputs for the mine operations are imported from South Africa. The problem with this for the mine is the strengthening of the rand against the dollar.

The already established infrastructure at the property positions it to direct resources towards increasing production rather than baseline capital investment since most of the equipment is in place. The commissioning of the Number 4 shaft and the standby power generator set positions the mine to increase production. This coupled with a loyal, long serving and experienced staff works in the operation’s favour as necessary skills are retained.

The property has robust orebodies whose down dip extensions below the current deepest level on the mine are yet to be fully explored. The adjacent property, the Vubachikwe Gold Mine has payshoots extending below 1 km depth. Potential to find new orebodies and increase the resource base exists particularly from platforms afforded by haulage development.

There is an enormous capacity at the plant since Blanket Mine stopped processing old slimes. This capacity provides opportunity to increase production considerably without the need for massive investment in the process plant.

 

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2      INTRODUCTION
 
  This technical report is prepared on behalf of Blanket Mine (1983) (Private) Limited (Blanket) for its parent company Caledonia Mining Corporation (Caledonia), a Canadian registered company which is listed on the Toronto Stock Exchange (TSX – CAL) and on the AIM Market of the London Stock Exchange (LSE CMCL) and also traded on the NASDAQ OTCBB (CALVF). Caledonia’s website can be accessed on www.caledoniamining.com. Blanket Mine (1983) Private Limited is incorporated in Zimbabwe and is the owner and operator of the Blanket Mine and a wholly owned subsidiary of Caledonia.
 
  Caledonia’s Canadian representational address is:
 
  Suite 1201 67 Yonge Street Toronto Ontario Canada M5E 1J8
 
2.1      Scope of Work
 
  The MSA Group (MSA) has been commissioned by Blanket on behalf of Caledonia to provide an Independent Technical Report on its Blanket gold mining and exploration property located in the Gwanda area of Zimbabwe, in which Blanket holds a 100% interest
 
  This Technical Report has been prepared to comply with disclosure and reporting requirements set forth in the Toronto Stock Exchange (TSX) Corporate Finance Manual, Canadian National Instrument 43-101, Companion Policy 43-101CP, Form 43- 101F1, the ‘Standards of Disclosure for Mineral Projects’ of December 2005 (the Instrument) and the Mineral Resource and Reserve classifications adopted by CIM Council in November 2010.
 
  All monetary figures expressed in this report are in United States of America dollars (US$) unless otherwise stated.
 
2.2      Principal Sources of Information
 
  MSA has based its review of the property on information provided by Blanket and Caledonia, along with technical reports by Government agencies and previous tenements holders, and other relevant published and unpublished data. A listing of the principal sources of information is included at the end of this Technical Report. A site visit was made during the period 5 to 7 June 2011 to the Blanket property in Zimbabwe We have endeavoured, by making all reasonable enquiries, to confirm the authenticity and completeness of the technical data upon which the Independent Technical Report is based. A final draft of the report was also provided to Caledonia, along with a written request to identify any material errors or omissions prior to lodgement.
 

 

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The Technical Report has been prepared on information available up to and including 28 June 2011. The Mineral Resources and Mineral Reserves reflected in this report are based on the Blanket Gold Mine Mineral Reserve Reports prepared by Blanket and dated 31 December 2009 and 31 December 2010. MSA has produced its own financial model based on these mineral reserves to derive a discounted cash flow model, undertake a sensitivity analysis and determine a net present value for the mine.

2.3 Qualifications, Experience and Independence

MSA is an exploration and resource consulting and contracting firm which has been providing services and advice to the international mineral industry and financial institutions since 1983. This Technical Report has been compiled by Bruno Bvirakare, Justin Glanvill, Joel Mungoshi, Vaughn Duke and John Sexton. Peer review has been undertaken by Robert Croll and Mike Robertson.

Mr Bruno Bvirakare is a professional geologist with 15 years’ experience in exploration and mining of Archaean gold deposits and other commodities. He has worked on producing gold mines in Zimbabwe and a number of projects on various commodities elsewhere on the Africa continent. He is a registered professional scientist with the South African Council for Natural Scientific Professions (SACNASP), and a Member of the Geological Society of South Africa (MGSSA). Mr Bvirakare has the appropriate relevant qualifications, experience, competence and independence to act as a ‘Qualified Person’ (QP) as that term is defined in NI 43-101. Mr Bvirakare serves as the overall QP for this Technical Report. Mr Bvirakare’s certificate as a QP is attached in Appendix 2 of this Technical Report.

Mr Justin Glanvill is a professional geologist with 13 years’ industry experience with a number of multinational mining and exploration companies and in a variety of commodities. He has worked on gold projects in South Africa and elsewhere. He is an Associate Consulting Geologist with MSA, a registered professional scientist with South African Council for Natural Scientific Professions (SACNASP), a Member of the Geological Society of South Africa (MGSSA) and the Geostatistical Association of South Africa. Mr Glanvill has the appropriate relevant qualifications, experience, competence and independence to act as a QP as that term is defined in NI 43-101.

Mr Joel Mungoshi is a metallurgical engineer with 23 years’ industry experience with a number of multinational mining and exploration companies and in a variety of commodities. He has worked on gold projects in South Africa and elsewhere. He is a Member of the Southern African Institute of Mining and Metallurgy. Mr Mungoshi has the appropriate relevant qualifications, experience, competence and independence to act as a QP as that term is defined in NI 43-101.

Mr Mike Robertson is a professional geologist with 22 years’ experience, the majority of which has involved the exploration and evaluation of gold and base metal properties in Southern, Central and East Africa, the Middle East, Australia, Canada, Mexico, Russia and the CIS states. Mr Robertson is Principal Consultant – Gold and Base Metals with The MSA Group, a Member of the South African Institute of Mining and Metallurgy (SAIMM) and a Professional Natural Scientist (PrSciNat) registered with the South African Council for Natural Scientific Professions.

 

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  Mr Robert Croll, who is a professional mining engineer and a Qualified Valuator as that term is defined by the Special Committee Of The Canadian Institute Of Mining, Metallurgy and Petroleum on Valuation of Mineral Properties (CIMVAL), with over 35 years’ experience in mining and valuation of mineral projects within Africa and elsewhere internationally. Mr Croll is a Fellow of the South African Institute of Mining and Metallurgy.
 
  Neither MSA, nor the authors of this Technical Report, have or have had previously, any material interest in Caledonia or the mineral properties in which Caledonia has an interest. Our relationship with Caledonia is solely one of professional association between client and independent consultant. This Technical Report is prepared in return for professional fees based upon agreed commercial rates and the payment of these fees is in no way contingent on the results of this Technical Report.
 
2.4      Current Personal Inspection
 
  A site visit was made during the period 5 to 7 June 2011 to Blanket Gold Mine by Mr Bruno Bvirakare BSc., PrSciNat, and a QP as that term is defined in NI 43-101. A visit was made to the mine, the treatment plant, the waste dumps, and the sample assay laboratory and data management section.
 
2.5      Purpose of the Technical Report
 
  The purpose of the work done by MSA was to re-establish regular public reporting of the Blanket Mine mineral reserves and mineral resources on an annual basis. The purpose was not to review the exploration work being done, or proposed to be done, on the Blanket Mine, nor to make recommendations as to further exploration that should be done. Hence there is no material discussion in this Technical Report, or in the summary above, of the exploration work done, or which could be done, on the Blanket Mine property.
 

 

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3      RELIANCE ON OTHER EXPERTS
 
  MSA assumed that all of the information and technical documents reviewed and listed in the “References” section of this report are accurate and complete in all material aspects. While MSA carefully reviewed all of this information, MSA has not concluded any extensive independent investigation to verify their accuracy and completeness. The information and conclusions contained herein are based on information available to MSA at the time of preparation of this report.
 
  MSA has viewed details regarding the claims that collectively comprise the Blanket Gold Mine, and other properties held by Blanket within the Gwanda Greenstone Belt.
 
  MSA has not independently verified, nor is it qualified to verify, the legal status of these concessions. The present status of tenements listed in this report is based on information and copies of documents provided by Caledonia, and the report has been prepared on the assumption that the tenements will prove lawfully accessible for evaluation.
 
  Similarly, neither MSA nor the authors of this report are qualified to provide comment on environmental issues associated with the Caledonia Projects.
 
  Caledonia has reviewed draft copies of this report for factual errors. Any changes made as a result of these reviews did not involve any alteration to the conclusions made. Hence the statements and opinions expressed in this document are given in good faith and in the belief that such statements and opinions are not false and misleading at the date of this report.
 
  MSA reserves the right to, but will not be obligated to, revise this report and conclusions thereto if additional information becomes known to MSA subsequent to the date of this report.
 

 

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4      PROPERTY DESCRIPTION AND LOCATION
 
  Blanket Mine is situated about 130 km to the south of Bulawayo, Zimbabwe’s second largest city, and 15 km northwest of the town of Gwanda, the provincial capital of Matabeleland South, in south-western Zimbabwe (Figure 4-1). It lies 196 km northwest of the Beit Bridge Border post between Zimbabwe and South Africa. The mine and mill complex is shown in the photograph in Figure 4-2.
 
  The general geographic coordinates of Blanket Mine are Latitude 20°52' S, Longitude 28°54' E. Coordinates for 347 individual claims are presented in Appendix 4. The area is covered by topographic sheet number 2028D4.
 

Figure 4-1

Map showing the location of the Blanket Mine in south-western Zimbabwe

 

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Figure 4-2
The Blanket Mine and mill complex

Blanket Mine covers the claims of Jethro, Blanket Section, Feudal, AR, Sheet, Eroica and Lima, comprising a total area of approximately 2 540 ha, as documented by Applied Geology Services (AGS) in their NI 43-101 Technical Report dated July 2006. This is the same as quoted by SRK in 2002, at which time the company was reported to be converting part of these clams into a Mining Lease (Figure 4-3), which offers more protection to the tile holder and confers on him surface as well as mineral rights.

Claims not covered by the Mining Lease application were reported not to form part of the then current production area (SRK, 2002; AGS, 2006). However, the initial documentation was lost in transit between the offices of the relevant authorities before processing. Blanket Mine was requested to resubmit the application and to deliver it physically to Harare. This was done but to date there has been no response. There was then a Presidential directive to refrain from the issuing of any Mining Lease (or Exclusive Prospective Orders) indefinitely. There is uncertainty on whether this will happen in the near future.

The location, including coordinates, of 347 claims belonging to Blanket Mine were supplied to MSA by Caledonia and are listed in Appendix 4 of this report. Some of these claims are producing claims, whereas others are exploration claims.

 

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Figure 4-3

Map showing the area covered by Blanket Mine’s Mining Lease application (2006)

In Caledonia’s (2011c) Annual Management Discussion dated 30 March 2011, it is reported that Blanket’s current exploration title holdings in the form of registered mining claims in the Gwanda Greenstone Belt total 78 claims, including a small number under option, covering an area of about 2 500 hectares. Of these claims, 47 are registered as precious metal (gold) blocks covering 415 ha and 31 claims were pegged and are registered as base metal (Cu, Ni, As) blocks, covering an area of 2 085 ha. Gold or precious metal claims measure 10 x 1 ha (10 ha), whereas base-metal claims are larger.

 

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Blanket Mine provided two separate lists of producing claims at Blanket Mine and satellite exploration claims, both dated May 2011. The names of each claim as well as registration and certificate numbers were provided to MSA. These lists are reproduced in Appendix 4.

Figure 4-4
Blanket Mine claims in the Gwanda area

Appendix 4 includes all the claims on the Blanket mine complex itself and also satellite claims around the mine. Acquisition and expiry dates, registration and certificate numbers are provided for each claim. The satellite claims are protected by payment of an annual fee to the government. There are no other obligations.

The surface rights appear still to be privately held. Had Blanket Mine successfully converted part of its claims to a Mining Lease, the surface rights as well as the mineral rights would belong to the title holder (AGS, 2006).

A legal due diligence was completed by Roodt and Associates Inc. prior to the acquisition of Blanket Mine by Caledonia. This study confirmed the legal tenure of the mine properties and that there was, at that time, no litigation which materially affected the mine property (AGS, 2006). SRK (2002) reported that the historical tenure situation had not changed for over 20 years and that they were ‘confident that the mineral rights of the Blanket Mine [were] secure’.

 

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In 2008 the Zimbabwean Parliament passed the Indigenisation and Economic Empowerment Act, 2007 which stipulated that 51% ownership of all companies had to reside in the hands of Indigenous Zimbabwean citizens. In February 2010, Statutory Instrument 21 of 2010 dealt with regulations for implementation of the Act. In terms of the regulations Blanket Mine had to submit an implementation plan outlining how Blanket proposes to comply with the requirements of the Act within a 5-year period.

On 25 March 2011 the Zimbabwe Government issued a General Notice via the Government Gazette which announced the following indigenisation regulations applicable to the mining sector (Caledonia Mining Corporation,2011c) (Annual Management Discussion, 30 March 2011):

§      All non-indigenous mining companies would have to transfer a 51% ownership stake
 
§      Only designated entities, as defined, could be considered as indigenous partners
 
§      The valuation of the business must be agreed by the Minister and the Company
 
§      The value of sovereign ownership of mineral resources of exploited and unexploited minerals is to be taken into account in determining the valuation
 
§      All non-indigenous mining companies have to file an implementation plan by 9 May 2011
 
§      The plan must be implemented within six months of March 25, 2011 and after the approval of the implementation plan.
 

Blanket Mine submitted its Indigenisation Implementation Plan to the Zimbabwean Government on 9 May 2011 and awaits a response. Caledonia is monitoring the situation and is consulting widely on the issue (Caledonia Mining Corporation, 2011a) Notes to the Condensed Consolidated Financial Statements For the three month period ended March 31, 2011 and 2010 Unaudited).

It was not a requirement at the time the title-holdings were granted for corner beacons to be erected. A number of old beacons are observed around the property (Figure 4-5). Subsequently, it has been made a legal requirement to erect corner beacons, but only for newly acquired properties.

The location of known mineralised zones, mineral resources, mineral reserves and mine workings, tailing ponds (Figure 4-6), waste deposits and important natural features and improvements are shown on the general surface layout (Figure 4-7).

 

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Figure 4-5
Old claims beacon at the Blanket Mine


 

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Figure 4-7

General surface layout of the Blanket Mine (Source: Blanket Mine)


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The property does not appear to be subject to any royalties (other than the legislated royalty of 4.5% of sales value currently being paid to the Government), back-in rights, payments or other agreements and encumbrances. Ore mined from underground carries no third-party royalties. These are covered by payment of the annual claims protection fees to the Ministry of Mines (AGS, 2006).

At the time of writing, there were no known environmental liabilities that the mine is subject to. The mine has complied with all regulatory requirements issued by the authorities.

The Blanket Mine operates under a Special Licence (No. 5030) which was issued under the Mines and Minerals Act of 1961 (Chapter 21:05). The mine’s claims are protected under this Act.

 

 

 

 

 

 

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5      ACCESSIBILITY, CLIMATE, LOCAL RESOURCES, INFRASTRUCTURE AND PHYSIOGRAPHY
 
5.1      Physiography and Vegetation
 
  The area around Blanket Mine is hilly and lies at an altitude of about 1 000 m to 1 300 m above sea level (Figure 5-1 and Figure 5-2). Drainage is to the northeast, into the Mchabezi River on which the Sheet dam and the Blanket Dam are located some 5 km to the east of the mine.

Figure 5-1

Blanket Mine setting showing shaft infrastructure (Source: www.caledoniamining.com)

 

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  The indigenous vegetation is dominated by savannah with Marula (Sclerocarya birrea), a variety of Combretum species, Terminalia sericea, Mopane groves and patches of grassland. Around the mine and local settlements this has been cut down and invaded by secondary thorny scrub dominated by Dichrostachys cinerea.
 
  Agriculture is limited to subsistence farming of maize and vegetables (AGS, 2006).
 
5.2      Access
 
  Access to Blanket Mine is by an all-weather single lane tarred road from Gwanda. Gwanda is linked by national highways to Bulawayo, Harare and the Beit Bridge Border post. Formerly, Zimbabwe had good road infrastructure. However, lack of investment over the past ten to fifteen years has resulted in its deterioration and substantial investment is required country-wide.
 
  The railway line connecting the Zimbabwean national network to South Africa passes through Gwanda.
 
  An airstrip for light aircraft is located 5 km to the northwest of the town (AGS, 2006).
 
5.3      Climate
 
  The Blanket area has a tropical climate with hot and humid summers and mild winters. The rain season lasts approximately five months, from late October to mid-March. Annual rainfall ranges from 400 mm to 500 mm.
 
  The mine is able to operate year-round (SRK, 2002).
 
5.4      Local Resources and Infrastructure
 
  The town of Gwanda has a population of approximately 30 000 people and is the regional centre for many scattered settlements. Labourers for the mine are accommodated with their families in a mine village about 1 km from the mine (AGS, 2006).
 
  Mine infrastructure comprises underground workings with head gear and hoist facilities, a process plant, workshops and tailings dam. The general surface layout is shown in Figure 4-7. Stores, workshops and offices, as well as an assay laboratory, lie adjacent to the mine shafts. There is adequate surface area for further expansion.
 
  The two-compartment tailings dam which lies to the east of the mine is operated by Frazer Alexander Zimbabwe. According to SRK (2002) it had a design life of ten years, taking into account the then current life of mine plan. Based on the throughput rate at that time (3 800 tpd), the tailings dam had a remaining capacity of 9.5 Mt. Since then the mine has slimed 6.0 Mt leaving a remaining capacity as at January 2011 of 3.5 Mt. Since the mine no longer treats old slimes, the planned daily throughput has fallen to 1 000 tpd which equates to a life of approximately 14 years. At a production rate of1 000 tpd the rate of rise (RoR) is 0.54 m per year based on the final design area of 28 ha, which is well below the legal maximum of 2 m per year.
 

 

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Makeup process water and water for the mine village are derived from the Blanket Dam which has a capacity of 15 Mm3. In addition, the mine has several boreholes to provide water during periods of drought (AGS, 2006). The Zimbabwe Water Authority holds all water rights in Zimbabwe. Blanket purchases process and domestic water from ZINWA. It supplements this with underground water and borehole water. No problems have been recorded with water supply.

Two power lines of 11 kVA and 33 kVA connect the mine to the national grid operated by the Zimbabwe Electricity Supply Authority (ZESA). Owing to frequent interruptions to the power supply Blanket Mine has installed its own 10 MVA generator installation consisting of 4 diesel units. The mine can now be self-sufficient and is able to continue its mining and processing operations during disruptions to the grid supply (Caledonia Mining Corporation, 2011g) (30 May 2011).

 

 

 

 

 

 

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6      HISTORY
 
  The Blanket Mine is part of the Sabiwa group of mines within the Gwanda Greenstone Belt from which gold was first extracted in the 19th century. The ‘Blanket Mine’ is in fact a cluster of mines extending some 3 km from Jethro in the south through Blanket itself, Feudal, AR South, AR Main, Sheet, Eroica to Lima in the north. Blanket Mine has during its lifetime produced over a million ounces of gold (Caledonia Mining Corporation, 2011c, Annual Management Discussion, 30 March 2011).
 
  Following sporadic artisanal working, the Blanket Mine was acquired in 1904 by the Matabele Reefs and Estate Company. Mining and metallurgical operations commenced in 1906 and between then and 1911, 128 000 t were mined. From 1912 to 1916 mining was conducted by the Forbes Rhodesia Syndicate who achieved 23 000 t. During the period 1917 1941 there are no reliable records of mining and it is possible that operations were adversely affected by political instability during World Wars 1 and 2. In 1941 F.D.A. Payne produced some 214 000 t before selling the property to Falconbridge in 1964 (Blanket Mine, 2009).
 
  Under Falconbridge, production increased to 45 kg per month and the property yielded some 4 Mt of ore up until September 1993. Kinross Gold Corporation (Kinross) then took over the property and constructed a larger carbon-in-leach (CIL) plant with a capacity of 3 800 t per day (tpd). This was designed to treat both run-of-mine ore and an old tailings dump.
 
  Blanket Mine is currently wholly owned and operated by Caledonia Mining Corporation who completed purchase of the mine from Kinross on 1 April 2006 (www.caledoniamining.com).
 
  Historical production up to December 2010 is tabulated in Appendix 5 and summarised graphically in Figure 6-1. From a production rate of 45 kg per month under Falconbridge gold production reached a level of 110 kg per month between 1995 and 2007, during the period when the tailings were treated (www.caledoniamining.com, 2011).
 

 

 

 

 

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Figure 6-1

Summary of production at Blanket Mine to December 2010 (Blanket Mine, 2011)

During 2008 all gold mines in Zimbabwe, including the Blanket Mine, were forced to close due to the failure of the Reserve Bank of Zimbabwe (RBZ) to pay for gold sold to the Reserve Bank. At that time gold producers were obliged to sell all gold to the RBZ. Most mines resumed operations in 2009 following liberalisation of export regulations, enabling producers to export gold directly and to retain 100% of the proceeds in foreign currency. Blanket Mine was closed from October 2008 and resumed operations in April 2009 (www.caledoniamining.com, 2011).

Since 2009, Blanket Mine has made capital investments in both underground, surface and township facilities. This included the commissioning of the Number 4 Shaft Expansion Project in September 2010 which increased underground production capacity from 500 tpd to 1 000 tpd, thus increasing gold production capacity from 24 000 ounces per year to just under 40 000 ounces per year (www.caledoniamining.com, 2011). Mining is predominantly by long-hole open stoping methods since at present the bulk of production comes from the AR Main and AR South bodies which are massive ore bodies. The other (tabular) bodies are mined using underhand stoping and at times, shrinkage stoping with jackhammers.

 

 

 

 

 

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Figure 6-2
Number 4 shaft at Blanket Mine

Figure 6-3
Number 4 shaft hoist room at Blanket Mine

In the first quarter of 2011 gold production increased by 17% to 7 322 ounces compared to 6 235 ounces in the fourth quarter of 2010 and 3 129 ounces in the first quarter of 2010. Gold production in April 2011 was 2 737 ounces. The average achieved price per ounce of gold was US$ 1 397 compared with US$ 1 107 in the first quarter of 2010 (Caledonia Mining Corporation, 2011h) (First Quarter 2011 Results, 18 May 2011). Target production for the third quarter of 2011 and thereafter is 10 000 ounces per quarter. The commissioning of a complete standby generating system commenced on 16 May 2011 and was expected to be completed by the end of the month, after which Blanket should be able to maintain full operations during any interruption to the normal power supply. Ore handling limitations at the 18 and 22 levels have been addressed by raise boring a 120 m long ore pass connecting 18 Level to the 22 Level. The facility was commissioned in May 2011 (Caledonia Mining Corporation, 2011h) (First Quarter 2011 Results, 18 May 2011).

 

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Figure 6-4
Genset and Genset shed at Blanket Mine

Blanket continues to export its gold production to Rand Refineries in South Africa and receives 100% of the sale proceeds in US dollars (Annual Management Discussion, 30 March 2011.

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7      GEOLOGICAL SETTING
 
7.1      Regional Geology
 
  The Archaean Zimbabwe Craton comprises almost 60% of Zimbabwe’s land surface in the eastern and central parts of the country (Figure 7-1). Almost all of Zimbabwe’s known gold mineralisation occurs in host rocks of the Zimbabwe Craton. The geology of the Craton is characterised by strongly deformed and metamorphosed rocks including high-grade metamorphic rocks, gneisses, older granitoids, greenstone belts, intrusive complexes, younger granites and the Great Dyke (Petters, 1991).
 

Figure 7-1

Simplified Geological Map of Zimbabwe showing the location of the Blanket Mine

The oldest rocks are a variety of gneisses and tonalities of varying ages, including the Chingezi gneiss, the Mashaba tonalite and the Shabani gneiss (Petters, 1991). Three major sequences of slightly younger supracrustal rocks (gold-bearing greenstone belts) have been recognised (Petters, 1991; Foster, 1989):

 

 

 
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§      The Sebakwian Group (older greenstones), mostly metamorphosed to amphibolite facies, comprising komatiitic and basaltic volcanic rocks, banded iron formation and minor clastic sediments
 
§      The Lower Bulawayan Group (Belingwean greenstones), comprising basalts, high-Mg basalts, felsic volcanics and mixed chemical and clastic sediments
 
§      The Upper Bulawayan (upper greenstones) and Shamvaian groups, comprising a succession of sedimentary and komatiitic to tholeiitic to calc-alkaline rocks.
 

Mafic and granitoid intrusives were emplaced during a renewed phase of magmatism between 2.7 Ga and 2.5 Ga. These include the south-southwest north-northeast trending ultramafic/mafic Great Dyke, which cuts across the pre-existing granite-greenstone terranes; the Mashaba Ultramafic Suite; and two late Archaean granitoid events (Sesombi Suite, c. 2.7 – 2.6 Ga and the Chilimanzi Suite, c. 2.6 Ga) (Petters, 1991).

Three metamorphic belts surround the Zimbabwe Craton:

§      The east-northeast trending Archaean Limpopo Mobile Belt separates the Zimbabwe Craton from the Kaapvaal Craton to the south and is characterised by high-grade metamorphic and igneous rocks including amphibolites, gneisses and granulites (Petters, 1991)
 
§      The Magondi Mobile Belt on the northwestern margin of the Craton, formed as a result of deformation and metamorphism of the Palaeoproterozoic Magondi Supergroup. The Magondi Supergroup comprises the Dewaras Group (volcano- sedimentary deposits), the Lomagundi Group (sedimentary deposits) and the Piriwiri Group (sedimentary deposits) (Master et al., 2010
 
§      The Neoproterozoic to Cambrian Zambezi Mobile Belt to the north and northeast of the Zimbabwe Craton, consisting of high grade and intensely deformed metasediments with intercalated basement gneisses (Petters, 1991).
 

In the north, west, south and southeast of Zimbabwe, the Craton is overlain by Karoo Supergroup sediments and volcanic rocks of Permian-Triassic-Jurassic age, Cretaceous post-Karoo sediments, and Tertiary to Recent Kalahari sands.

7.2 Local Geology

The Blanket Mine is situated on the north-western limb of the Archaean Gwanda Greenstone Belt, along strike from several other gold deposits (Figures 7-1 and 7-2). It is one of the few remaining producing gold mines out of the approximately 268 mines once worked in this greenstone belt (Tyndale-Biscoe, 1940).

 

 

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Figure 7-2

Regional geology of the Gwanda Greenstone Belt and location of the Blanket Mine Claims


 

 

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The Gwanda Greenstone Belt is located in south-western Zimbabwe and measures some 70 km in length from east to west and approximately 15 km in width from north to south. The belt in its entirety is typical of greenstone belts of the Zimbabwe Craton and comprises mafic to felsic volcanics with intercalated sedimentary units, including banded iron formations.

In the vicinity of Blanket Mine, the Gwanda Greenstone Belt lithologies comprise felsic schists of either sedimentary or igneous origin, overlain by mafic to ultramafic rocks containing layers of banded iron formation, in turn overlain by a thick sequence of mafic rocks (AGS, 2006). The entire sequence, from Vubachikwe, through Blanket, to the Smiler deposit, approximately 3 km to the north of Blanket, is cut by a regional dolerite sill (AGS, 2006). Mineralisation at Vubachikwe, to the south-southeast of Blanket Mine, is hosted in the band iron formation unit, whereas that at Blanket Mine is located in the overlying mafic unit (AGS, 2006; Saager et al., 1987).

All the lithologies have been subjected to repeated strong deformation. A major periclinal synform, plunging approximately 60° to the northwest in the western half of the belt, dominates the structure of the Gwanda Belt. It is flanked on both sides by two major deformation zones: the North West Gwanda Deformation Zone (NWGDZ) on the northwestern limb and the South Gwanda Deformation Zone (SGDZ) along the southern limb. The latter forms part of a regional structure bounding the southern margin of the belt. In the convergence zone of the NWGDZ and the SGDZ, the Colleen Bawn Deformation Zone (CBDZ) splays off the SGDZ eastwards, following the northeastern arm of the belt (Campbell and Pitfield, 1994).

The approximately 2 km wide by 18 km long NWGDZ trends northwest to north-northwest, from the town of Gwanda to the northwestern extremity of the belt (Campbell and Pitfield, 1994). Four phases of deformation have been defined by Fuchter (1990). Repetition of lithological units, particularly in the northwestern arm of the greenstone belt, is interpreted as evidence of D1 thrusting. Wide zones of intense schistose deformation, considered to be associated with the gold mineralisation, are the product of the D2 event. The D1 thrust phase has a coincident trend and may be an early part of the D2 event.

The large fold structures of the D3 deformation event dominate the eastern and western ends of the greenstone belt and are easily identified on geological maps and in aerial imagery. The mineralisation at Blanket and Vubachikwe lies on the northern limb of the large western fold (the North West Mineralised Camp). The final D4 deformation event produced major lineaments which dominate the southern margin of the greenstone belt (Fuchter, 1990).

The grade of metamorphism at Gwanda, which reaches upper greenschist to amphibolite facies, is higher than in the typical Zimbabwean greenstone belts, possibly due to the close proximity of the Gwanda belt to the Limpopo Mobile Belt (AGS, 2006).

 

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7.3 Property Geology

In the vicinity of Blanket Mine, the rock units strike north south and young in a westerly direction. The local geology comprises three main units (Figure 7-33). The basal Felsic Unit, which occurs in the east, comprises quartz schists and quartz-sericite schists (Blanket Mine, 2009). The tailings disposal sites are located on this lithological unit, which appears not to be mineralised (AGS, 2006).

The Felsic Unit is overlain by the Mafic Unit, which is subdivided into a lower zone and upper zone. The lower zone comprises ultramafic rocks and banded iron formations (BIFs); the latter hosting the mineralisation at Vubachikwe Mine. The upper zone comprises massive to pillowed lavas with intercalations of interflow sediments (cherty argillites). The latter are referred to locally as ‘Black Markers’ (Blanket Mine, 2009). The rock is a fine-grained massive amphibolite with localised shear planes (AGS, 2006). A low-angle transgressive shear zone, up to 50 m wide and characterised by a well-developed fabric and the presence of biotite, cuts through the Mafic Unit and is the locus of the gold ore bodies (AGS, 2006).

Figure 7-3

Stratigraphic sequence in the vicinity of Blanket Mine (Source: AGS, 2006)

 

 

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A younger, barren olivine-gabbro sheet intrudes the package, and the entire sequence is capped by the Intermediate Unit comprising andesitic lavas with amphibolite feldspar schists (AGS, 2006; Blanket Mine, 2009).

The entire sequence is cut by a regional dolerite sill, extending from Vubachikwe, through Blanket, to Smiler in the north. The sill truncates all the ore shoots but does not cause significant displacement, and there is continuity of mineralisation above and below the sill (AGS, 2006).

Tyndale-Biscoe (1940) referred to the Blanket ore bodies, together with those of the Vubachikwe area, as the Sabiwa Group of mines. Fuchter (1990) referred to the same group as the North Western Mining Camp. Currently, Blanket Mine includes a cluster of mines extending northwards from Jethro in the south, through Blanket Section, Feudal (now defunct), AR South, AR Main, Sheet and Eroica to Lima in the north (Figure 7-4). Dormant old workings on the property are hosted in banded iron formation, forming the northern continuation of the Vubachikwe zone. They include (from south to north) Sabiwa, Jean, Provost, Redwick, Old Lima and Smiler (AGS, 2006).

 

 

 

 

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Figure 7-4

Locality plan of workings in the Blanket Mine production area (AGS, 2006)


 

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8      DEPOSIT TYPES
 
8.1      Characteristics of the Blanket Mine Deposits
 
  The Blanket ore bodies are found hosted in the northwestern limb of the Archaean Gwanda Greenstone Belt. The ore bodies are of hydrothermal origin and lie within a structurally induced regime in metamorphosed basalts in the upper zone of the Mafic Unit (see Section 7 above).
 
  At Blanket Mine the deformation is characterised by areas of high strain around relatively undeformed remnants of basaltic flows, referred to as ‘lozenges’. These vary in size from 10s to 100s of metres. The ore bodies are developed in the areas of very high strain and are often enveloped by pervasive biotite, chlorite and carbonate alteration. The widest ore bodies lie within the more ductile tensional high strain areas (Blanket Mine, 2009). Two main types of gold mineralisation are recognised (see Section 9 below): disseminated sulphide replacement reefs, which are massive or pipe-like bodies, and quartz reefs and shears which are tabular or lensoid (Blanket Mine, 2009). Silver occurs together with the gold and usually makes up about 10% of the Dore bar, which is normal for greenstone gold deposits.
 
  At Vubachikwe Mine, which lies to the south of Blanket Mine, gold mineralisation is hosted within the lower zone of the Mafic Unit, which comprises ultramafic rocks and banded iron formations (BIFs). Gold-bearing sulphide minerals here occur as a replacement of iron-rich minerals in fold hinge zones (AGS, 2006). Ore bodies comprise both breccia stockworks and stratabound sulphide replacement bodies (Campbell and Pitfield, 1994). The Blanket and Vubchikwe ore bodies, with Sabiwa, located to the north of Vubachikwe, are part of the Sabiwa group of mines.
 
  The Blanket Mine comprises a series of deposits along a strike length of about 3 km. The deposits range from Jethro in the south, through Blanket Section, Feudal, AR South, AR Main, Sheet, Eroica and Lima (Figure 8-1). Mineralisation occurs in near- vertical shoots along an approximate north south axis. The strikes of each deposit vary and they are not all in the same plane (Figure 8-2) (Blanket Mine, 2009).
 

 

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Figure 8-1

Sketch map showing the relative location of the series of deposits comprising the Blanket Mine (Source: Blanket Mine, 2009)

 

 

 

 
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Figure 8-2

A north south section showing the relative location of the series of deposits comprising the Blanket Mine (Source: Blanket Mine, 2009)

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8.2 Orogenic Gold Deposits

The basic exploration model for structurally controlled orogenic gold deposits applies to the area hosting Blanket Mine, and is described below.

Roberts (1996) recognised two broad groups of deposits based on precious metal composition: silver (Ag) rich deposits, in which the concentration of silver exceeds that of gold, and gold (Au) rich deposits, in which the concentration of gold exceeds that of silver (gold and silver concentrations of both types being at the ppm level). The latter, gold-rich group of deposits may be subdivided into two styles of mineralisation: quartz-carbonate vein-hosted and disseminated sulphide replacement type mineralisation. At Blanket Mine silver has been reported up to 10% of precious metals (AGS, 2006), so that the gold-rich model may be applied.

Orogenic gold deposits (also referred to as mesothermal, greenstone, shear zone related or lode gold deposits) are characterised by gold-bearing quartz veins and veinlets with minor sulphides (< 3 5% sulphide minerals) developed within a wide variety of host rocks, and largely localised along high-order dilational structures related to major regional faults within a predominantly compressional to transpressional environment (Figure 8-3). An exception is noted in banded iron formation and iron-rich mafic host rocks, where sulphidisation can be extreme.

 

 

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Figure 8-3

Schematic representation of mesothermal, intrusion-related and epithermal gold deposits showing the inferred crustal level of gold deposition (Dubé and Gosselin, 2005)

Wall rock alteration typically comprises silica pyrite muscovite within a broader carbonate alteration halo. Quartz-carbonate altered rock forms the most commonly recognised alteration assemblage. Gold is deposited at crustal levels within and near the brittle-ductile transition zone at depths between 6 km and 12 km, pressures between 1 and 3 kilobars, and temperatures from 200º C to 400º C. Deposits may have a vertical extent of up to 2 km, demonstrate extensive down-plunge continuity, and lack pronounced zoning.

Orogenic gold deposits are commonly associated with late syntectonic intermediate to felsic magmatism. The vein systems tend to occur as a system of en echelon veins on all scales. Tabular veins occur within less competent lithologies while veinlets and stringers forming stockworks occur in more competent lithologies. Vein systems are often spatially associated with contacts between lithologies displaying competency contrasts. Lower-grade bulk tonnage styles of mineralisation may develop in areas marginal to veins with gold associated with disseminated sulphides in the host rock.

The ore mineralogy is dominated by gold, pyrite and arsenopyrite with subordinate galena, chalcopyrite, pyrrhotite, sphalerite, tellurides, scheelite, bismuth and stibnite. Sulphide mineralogy commonly reflects the litho-geochemistry of the host rock with arsenopyrite the most common sulphide mineral in metasedimentary host rocks and pyrite or pyrrhotite more typical in metamorphosed igneous hosts. The gangue and alteration mineralogy is dominated by quartz and carbonate (ferroan dolomite, ankerite, siderite, calcite) with subordinate albite, fuchsite, sericite, muscovite, chlorite and tourmaline.

 

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A plot illustrating the tonnage, grade and contained gold for Canadian and world-class global deposits is shown in Figure 8-4. The average size and grade of world-class orogenic gold deposits is 40 Mt and 7.6 g/t Au respectively (Dubé and Gosselin, 2005).

Orogenic gold deposits may be classified as follows in terms of contained gold:

§    Small    < 250 000 oz (7 t) 
§    Medium    250 000 oz – 1 Moz (7–28 t) 
§    Large    1 3 Moz (28–85 t) 
§    Super large    > 3 Moz (> 85 t). 

The presence of placer/alluvial gold is an excellent regional and property-scale indicator of gold-quartz veins. Useful exploration tools include structural analysis to recognise dilational sites spatially associated with large-scale regional faults, as well as the recognition of alteration zones.

 

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Figure 8-4

Grade-tonnage plot for Canadian and global world class orogenic gold deposits (Dubé and Gosselin, 2005)

 

 

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9      MINERALISATION
 
9.1      Development and Style of Mineralisation
 
  Mineralisation at Blanket Mine is hosted in metamorphosed massive and pillowed basalts, altered to upper greenschist or amphibolite facies (AGS, 2006). The metabasalt forms the upper zone of the Mafic Unit. The lower zone of this unit comprises ultramafic rocks and banded iron formations, as observed on Vubachikwe Mine to the south of Blanket Mine. The Mafic Unit is underlain by the Felsic Unit which comprises mainly quartz and quartz sericite schists. Overlying the Mafic Unit are andesitic lavas with intercalated amphibole feldspar schists (greywackes) (see Section 7 above).
 
  The area has undergone four phases of deformation (Fuchter, 1990). The second event, D2 , was considered by Fuchter (1990) to be associated with gold deposition. The Blanket Mine lies on the northern limb of the Tuli synclinorium, one of the large fold structures attributed by Fuchter to D3 deformation. Mineralisation is hosted in a transgressive shear zone which cuts through the Mafic Unit. Fuchter (1990) records obliquity of foliation and subparallel mineralised veinlets in a 0.5 m zone along the footwall contact of the ore bodies. The foliation appears to strike clockwise relative to the north-northeast trending zones and anticlockwise relative to the northwest trending zones, which may be interpreted as a series of complementary shears symmetrically disposed to the main flattening fabric along D2 which typically dips to the west- southwest (Campbell and Pitfield, 1994).
 
9.1.1      Disseminated Sulphide Replacement Type Mineralisation
 
  The majority of the ore shoots at Blanket Mine comprise disseminated sulphide replacement (DSR) type mineralisation. These mineralised bodies occur in two main orientations, striking either northwest or north-northwest, or north-northeast. The former group includes Blanket ore bodies 2, 3 and 5, which dip at 70° to the southwest. The Blanket Quartz Reef (see below) follows a similar orientation, but is more shallowly dipping at 55° west-southwest. Ore bodies striking north-northeast include numbers1 and 4, which dip at 70° to the west. Similar trends are observed at a smaller scale within the individual ore bodies. The ore bodies are in virtual continuity, with the exception of the pipe-like number 3 ore body (Campbell and Pitfield, 1994).
 
  The ore shoots displaying disseminated sulphide replacement type mineralisation have a silicified core with remnant biotite and chlorite schist, with arsenopyrite swarms on the periphery. These fine sprays of disseminated arsenopyrite host the best gold grades. Adjacent to the silicified core on the hanging walls of replacement bodies a zone of brown carbonate, sometimes interwoven with biotite alteration, hosts lower grade mineralisation. The outermost zone, comprising chlorite carbonate schist, shows a further reduction in grade. Altered basalt is the adjacent country rock. Project geologists report a linear relationship between grade of mineralisation and the amount of finely disseminated arsenopyrite. From this it would appear that the texture of the arsenopyrite is more significant than its mere presence. Pyrite is also auriferous, but pyrrhotite is subordinate, though it is ubiquitous in the country rock (Blanket Mine, 2009).
 

 

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  Disseminated sulphide replacement ore bodies range in width up to 50 m in the case of the AR ore bodies which are lensoid in cross section and have a strike to width ratio of about 1.5 to 1. The remaining DSR bodies have widths up the 10 m with a strike length of between 60 m and 90 m. Grade in the disseminated sulphide replacement bodies was cited by Campbell and Pitfield (1994) as 6g/t. Free-milling gold constitutes up to 50% of the total metal content with the remainder occluded within arsenopyrite (SRK, 2002). The ore is not refractory and plant recoveries of 90% are typically achieved.
 
9.1.2      Quartz Reef Mineralisation
 
  Two quartz-filled shear zones are mined at Blanket Mine: the Blanket Quartz Reef and the Eroica Reef. These reefs have long strikes but are not uniformly mineralised although continuous pay shoots of over 100 m on strike are not uncommon.
 
  The Quartz Reef at Blanket has a surface strike of some 500 m and width up to 5 m, diminishing with depth, with an average dip of 55° to the west. It displaces the replacement type ore bodies with an apparent reverse movement of up to 250 m. The texture of the reef varies from typical quartz reef at depth through sheeted and boudinaged veinlets to ankeritic carbonate in schist and a sulphide replacement ore zone. This is interpreted as a transition from brittle ductile to a more ductile regime with depth Fuchter, 1990, in Campbell and Pitfield, 1994). A ‘Z’-shaped inflection towards the north of the reef outcrop forms the thickest part of the reef, up to 5 m, compared to less than 1 m on the limbs. Similar inflections are found elsewhere in the Northwest Gwanda Shear Zone. Subsequent to mineralisation the reef was displaced by the north-striking vertical Wenlock Fault which has a dextral strike-slip component of about 60 m.
 
  The Blanket Quartz Reef is not uniformly mineralised and economic mineralisation is restricted to three 90 m pay shoots which were defined on surface by early workers (Blanket Mine, 2009). Mineralisation comprises native gold with galena, which can be used as a pathfinder mineral. Arsenopyrite is more dominant down dip (Blanket Mine, 2009). It has been hypothesised that the Blanket Quartz Reef is locally composed of fault-filling gouge (Blanket Mine, 2009).
 
  Campbell and Pitfield (1994) report a grade of 16 g/t gold within the quartz reefs. Grade fluctuations are more extreme in the quartz reefs than in the disseminated sulphide type reefs but on average these quartz shears have higher grades and are used as a sweetener of ore to the mill (SRK, 2002).
 
  The characteristics of mineralisation in each of the ore bodies forming the Blanket Mine property is described below, from south to north.
 

 

 

 

 
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9.1.3      Jethro
 
  The Jethro ore body has a north south strike and a near vertical westerly dip. Locally the ore body has a tendency to roll over.
 
9.1.4      Blanket Section
 
  Blanket lies some 400 m to the north of the Jethro ore body. Blanket ore bodies 1 and 4 are parallel and occupy north south trending shear segments whereas ore bodies 2 and 5, which are also parallel, strike northwest southeast. Ore body 3 is cylindrical and lies in a shear segment parallel to the 2 and 5 ore bodies. The mean dip of the ore bodies is 80° southwest. On surface the Blanket Quartz Reef lies in the footwall of the disseminated sulphide replacement type ore bodies. The reef has a shallower dip than the disseminated sulphide replacement bodies but plunges in the same direction so that it progressively advances towards them with depth, displacing ore bodies 2, 3, 1, 4 and 5 in that order, at elevations indicated in Table 9-1.
 

Table 9-1

Displacement levels of disseminated sulphide replacement type ore bodies by

the Blanket Quartz Reef (data source: Blanket Mine, 2009)

Ore body    Displacement depth (m) 
2    200 mL 
3    320 mL 
1    360 mL 
4    Just below 630 mL 
5    Just below 630 mL 

At a depth of 470 mL ore body 2 reappears on the footwall of the Blanket Quartz Reef and is established on the 630 mL through to the 730 mL (Figure 9-1 and Figure 9-2).

 

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Figure 9-1

Plan view showing displacement of ore body 2 by the Blanket Quartz Reef (Source: Blanket Mine, 2009)

Figure 9-2

Profile view showing displacement of ore body 2 by the Blanket Quartz Reef (Source: Blanket Mine, 2009)

 

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9.1.5      AR Orebodies
 
  AR lies approximately 500 m to the north of the Blanket ore bodies. AR is a ‘Z’-shaped mineralised zone, comprising two separate orebodies, generally up to 30 m wide as a result of tectonic thickening due to episodes of faulting and folding.
 
  The AR ore bodies were first discovered in the late 1980s by exploration drilling from the 9 Level haulage. Lateral diamond drill holes 250 m long were drilled either side of the haulage every 50 metres. The body has no known surface expression and appears to form a peak under the regional dolerite sill just above 9 Level some 500 metres north of the Blanket ore bodies. From this point the body splits into two ore shoots, the AR Main and the AR South, plunging west at 55 degrees and south-west at 58 degrees respectively.
 
  AR Main
 
  The AR Main is a DSR type ore body occurring within a broad shear envelope in pillowed metabasalts. The envelope is generally irregular in plan but bounded by pronounce shears which assist in defining the limits of the mineralization. In the vertical dimension the shoot changes shape continuously but remains unbroken. At the lowest level of development on 750 m Level a shear disrupts the bodies causing the plunge to flatten to the west. The ore body strike is generally between 40 and 60 metres while a width of 30 metres is common at the centre of the envelope.
 
  The ore is essentially a silicified amphibolite consisting predominantly of quartz with minor carbonate and chlorite minerals. Gold mineralization is associated with the sulphide mineral arsenopyrite and to a much lesser extent with pyrrhotite and pyrite. Finely disseminated needles of arsenopyrite occur as clouds within the ore body which form the high grade areas. Sulphide minerals seldom amount to greater than 5% of the rock by volume. In view of its massive form the body is exploited using the long-hole open stoping method and currently contributes 30% of the Blanket mine production.
 
  AR South
 
  The AR South ore body plunges south-west trending towards the Blanket No 2 ore body at depth. AR South is also developed within a broad shear zone and differs from the Main body in that the body is more pipe-like with a maximum width of 50 metres being obtained. High grade sections of this body are defined by siliceous arsenopyrite clouds which have no spacial relationship to the geometry of the shoot, possibly on account of post mineralization deformation.
 
  Production stoping operations are taking place on both 18 and 22 Levels and this body also contributes about 30% of the Blanket mine production, making the total production from the AR section 60% of Blanket’s milled throughput.
 

 

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Figure 9-4
AR South ore at Blanket Mine

 

9.1.6      Eroica
 
  The main Blanket underground workings are connected to Lima by a 2 km long haulage which follows the strike of the main fabric. It thus offered an opportunity to probe for lateral ore bodies on either side which led to the discovery of the Eroica shoot.
 

 

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The Eroica ore body is some 1 300 m to the north of the main Blanket ore bodies. It has a northerly strike length of 300 m and dips at 65° to the west. The Eroica ore body is hosted in a high strain area where the shear is up to 15 m wide. The shear is characterised by brown carbonate alteration in strong association with biotite development. Swarms of thin silicified stringers locally develop into swells of up to 5 m in width and define the ore body. The silicification shows pinch and swell both on strike and down dip, resulting in a series of dismembered silicified pods developed within a particular shear. The biotite and carbonate alteration, together with the silicified stringers, form marker links between the dismembered pods. Finely disseminated arsenopyrite, pyrite and pyrrhotite are associated with gold mineralisation, but the shoot is also renowned for its native gold content which has been an ore ‘sweetener’ since its discovery.

9.1.7      Lima
 
  Lima mine is situated 2 km north of the Blanket ore bodies. The two mines are linked by an underground haulage. Like the Blanket ore bodies the Lima ore bodies developed in very high strain areas. The main shoots are the Hangingwall and Interlimb. In the Hangingwall limb mineralisation exists in the form of pyrite with subordinate arsenopyrite in cleavage planes within the pervasive biotite/chlorite alteration. The Interlimb is characterised by a centrally silicified core with pyrite and arsenopyrite constituting the main sulphides. The mine was initially established as a standalone operation after an exploration programme followed up on an intensive soil sampling exercise which indicated the presence of a major gold anomaly.
 

 

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Figure 9-6
Lima ore at Blanket Mine

 

 

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10      EXPLORATION
 
  Underground exploration has been based around the main haulage routes linking the individual ore bodies. Boreholes were drilled at 50 m or 100 m intervals either side of the haulage drift, perpendicular to strike.
 
  Blanket has to date not undertaken any surface exploration away from the actual workings. Exploration in the region is being planned and should be considered a work in progress.
 

 

 

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11      DRILLING
 
  All exploration drilling from surface and from underground was completed during the stewardship of Kinross. This has been reported in the SRK (2002) and AGS (2006) reports. No exploration drilling has been undertaken since that time.
 
  Information for this section has been largely extracted from AGS (2006) and from information gathered during the site inspection.
 
11.1      On-Mine Drilling
 
  Diamond drilling is the primary method of exploration used by the mine to replenish its reserve base and probe for extensions to existing ore bodies as well as to explore for further ore bodies within the immediate vicinity of the current mine workings.
 
  Underground haulages linking the Blanket and Lima ore shoots have provided platforms for horizontal core drilling at 100 m or 50 m centres to depths of 250 m either side of the haulage (Fig 13.1). This drilling led to the discovery of the two AR mineralized zones, the Sheet and Eroica deposits, all of which now form part of the mine’s mineral resource inventory.
 
  In addition to this practise of drilling both east and west of the main haulage, crosscuts into the hanging wall of the ore have been mined in order to establish drilling platforms from which to probe the down-dip extensions of the known ore shoots to allow for the estimation of resources.
 
  More closely spaced horizontal drilling through the DSR ore bodies follows this primary exploration as the next step in generating the Measured Mineral Resources. These holes are drilled at 7.5 metre intervals from cubbies off a drive located in the centre and along strike of, the mineralized zone. If the mineralized zone is not expected to be more than several metres wider than the development drift, then evaluation of the sidewalls is carried out using percussion drill sludge sampling. The narrow quartz reefs rely on channel sampling alone for resource estimation since these zones are fully exposed by the development.
 

 

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Figure 11-1

Plans Showing Typical Exploration Drilling from the Main Haulage (Source: AGS, 2006)


 

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12      SAMPLING METHOD AND APPROACH
 
  Information for this section extracted from 2006 NI43-101 report (AGS, 2006) and data provided by Caledonia. The sampling discussed here is confined to the within mine resource definition and not greenfields exploration.
 
  All Mineral Resource blocks have been generated from data obtained from underground core, channel (chip) sampling and/or percussion drill sludge sampling, with some deep diamond-cored holes drilled from surface or from underground platforms.
 
  Closely spaced horizontal drilling in the disseminated sulphide replacement (DSR) type ore bodies is used to define the mineral reserves. These holes are drilled from cubbies in the sidewalls of the drives located within the centre and along strike of the mineralised zone. A drillhole spacing of not more than 7.5 m is required for the definition of Measured Mineral Resources. In the case of the DSR ore bodies in which the mineralised zone is not expected to be more than several metres wider than the development drift (drive), percussion holes are drilled every 2 m and the sludge is sampled as an extension of the channel sampling pattern. The narrow quartz reefs rely on channel sampling alone for resource estimation.
 
  The definition of the Measured Resource is detailed in the Resource classification section as all measured blocks are automatically aggregated into Proven Reserves.
 
12.1      Channel and Percussion Drill Sludge Samples
 
  In addition to core drilling, the roof (back) of all primary development within mineralised zones is chip sampled along channels at 2 m intervals along strike (Figure 12-1). Where there are discrepancies between assay results and the visual grade estimation, a channel is cut across the mineralised zone with a diamond saw in order to improve the geometry of the sample groove.
 
  In wider ore bodies where not all the mineralisation is exposed by the primary development, sidewall sludge holes are drilled to a length of 1.2 m (Figure 12-1). Both chip and sludge samples are taken so as to give a complete section across the strike at standard 0.6 m intervals. In all of the mineralised zones, except the very wide AR Main and AR South bodies, only 4.2 m is sampled across the strike, and any mineralisation beyond these limits is not included in resource. The un-sampled payable sections are nevertheless mined but reported as coming from not-in-reserve (NIR) blocks.
 
  An exception to the standard 0.6 m channel sample interval occurs in the quartz shear deposits where lithology determines the sampled width when the vein is less than, or not a multiple of, 0.6 m.
 
  Crosscuts through very wide ore bodies are treated in the same way as evaluation core drilling and the sidewalls are sampled at 0.60 m intervals.
 

 

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Figure 12-1

Location of diamond core, chip and sludge sampling at Blanket Mine (Source: Blanket Mine)

12.2      Diamond Drill Core Sampling
 
  All cores are logged for rock type, structure, and alteration characteristics and ore minerals. For the long (250 m) horizontal and deep exploration holes, zones of mineralisation including arsenopyrite, pyrite, galena or pyrrhotite, are sampled at standard 0.6 m intervals, split with a diamond saw and sampled to ensure full coverage of the potential gold-bearing zones. The split core is then quartered, with one quarter being sent to the mine laboratory and one to an independent laboratory. Where there are significant discrepancies between the results further assays are requested on the sample pulps.
 
  Mineralised core from the measured resource drilling is not split and the whole core is sampled at 0.6 m intervals (Figure 12-1). In the quartz shears lithological control supersedes the standard 0.6 m interval although a minimum of 1.2 m is sampled at each traverse or intersection.
 
12.3      Sample Handling and Monitoring
 
  With the inherent problems of silicate loss with the fines upgrading the sample, and loss of particulate gold downgrading the sample, the accuracy of sludge sampling is questionable. The sludge samples are more than likely biased on the low side due to a loss of heavy minerals outweighing loss of silicates in the sampling process. While sludge sampling is relatively quick and cheap, the results need to be treated with caution. AGS (2006) was of the opinion that if the samples are used for boundary definition alone (when panning of sludge samples underground may be sufficient) then the practice could be continued. MSA agrees that caution should be exercised when using the sludge sampling, and prefers that sludge samples should not be used in resource calculations. However, a materiality test should be applied to establish whether the mine has valuation problems which would be indicated by unaccountable gold losses. Based on whether such problems exist or not, the mine could consider the merits of alternative forms of sampling and associated costs such as diamond core drilling every 2 m.
 

 

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Various measures are taken to ensure the validity and integrity of samples taken.

Three types of sample bags are used as follows:

§      Cloth sample bags are used in sludge sampling to allow for effective decanting of water while retaining the sample. Since more than one sample is taken from the sludge hole, the hole is flushed thoroughly with water before drilling and collecting the next sample.
 
§      Plastic sample bags are used in continuous chip and grab sampling whereas paper bags are used for sampling on-site core. The above bags are used once and discarded to minimise contamination.
 

A ticket tagging system is used with sketches drawn at the face showing the ticket numbers corresponding to the samples taken. On receipt from the laboratory, results are plotted on the assay plan against the corresponding ticket numbers. Based on these sketches, the sample data are digitised into the main database for ore body evaluation and modelling.

Blanket Mine ore bodies are visually distinguishable from the host lithologies and the degree of mineralisation can be visually estimated on a reef-by-reef basis with reasonable success. Mapping of development headings and stope benches are compared with the relevant assay data, and any suspect results or poor matches with the visual assessment are sent for check assay. Similarly, borehole core assay results are scrutinised with the logs in order to ensure that no obvious discrepancies occur.

 

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13      SAMPLE PREPARATION, ANALYSES AND SECURITY
 
13.1      Sample Preparation, Analyses and Security
 
  Gold assays for Blanket Mine are undertaken by an in-house laboratory on site and quality control procedures for checking the accuracy of assays are implemented. They include in-house standards for ore and milled samples including dump material. Five different laboratories in Zimbabwe have assayed these standards to establish their suitability and each batch of 32 samples contains one standard and one limestone blank. Assays are mostly by Fire Assay with gravimetric finish while a few, specifically mill samples, use an Atomic Absorption (AA) finish.
 
  An audit by AARL in 2000, while the Blanket Mine was owned by Kinross Gold, concluded that the laboratory lacked strict quality control measures and made a number of recommendations to improve accuracy and accountability. Most of the AARL technical recommendations were implemented. An audit was done by J. Oleson of Fairbanks Gold Mining, Inc. in 2002. Comments on the outstanding issues mainly referred to documentation of quality assurance and quality control (QA/QC) procedures.
 
13.2      Statement of Opinion on the Sample Preparation, Security and Analysis
 
  The on-site laboratory is not certified for mineral analysis but seems in reasonable repair with a good degree of cleanliness. Sample marking and tagging throughout the process would appear to be adequate. Manual transcription of all values is however a serious point of concern as this opens the data to corruption. A laboratory information management system (LIMS) with direct links to mass balances and other systems would dramatically reduce the possibility of transcription errors.
 
  Concern around the lack of proper referee laboratory duplicate analysis and the apparent lack of round-robin participation raises a flag on the precision and accuracy of the laboratory results. Without external verification, i.e. verification out of the control of the laboratory under question, there can be no declaration as to the precision of the laboratory (Figure 13-1). Internal checks will be more than adequate for accuracy measurements but there is no way to highlight possible fundamental errors in sample preparation or analysis that would not necessarily be detected during those internal checks.
 
  With regards the lack of a recognisable QAQC program it must be noted that the mine has consistently adhered to their protocols and have been successfully mining for a number of years using the data produced by the laboratory with excellent reconciliation between planned grades and gold produced.
 

 

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Figure 13-1
Explanation of accuracy versus precision


Good precision but relatively low accuracy (not reproducible but on average on target)  High precision, but low      accuracy (repeatable but off   target)

 

That being said, MSA suggests the following points provided that the suggestions can be feasibly implemented within the financial and practical limitations of the Blanket Mine:

§      That the laboratory process be reviewed on a regular basis to ensure continued internal compliance,
 
§      That all protocols, where possible, be revised to or maintained at industry best practice,
 
§      The inclusion of more detailed international standards at a range of grade values. It is not expected that this will be too difficult to implement unless there are legal limitations on foreign exchange or the importing of the standards.
 
§      the participation in international round-robins
 
§      The use of a certified external laboratory for duplicate sample analysis. Research has indicated that the Antech laboratory in KweKwe has been re-certified by SANAS in 2009 (http://www.antechlaboratories.com).
 

 

 

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14      DATA VERIFICATION
 
  During the course of the site visit to Blanket Mine, the QP was able to review the methodology of calculation and records of the data used in the resource estimate with a view to independently verify the data quality.
 
  The method of calculation has remained the essentially the same since last Technical Report of 2006. Retention of staff for long periods has had the effect of maintaining consistency. Data records are well maintained and secure. Although all the data is currently manually generated and stored in hardcopy paper worksheets, digital conversion and creation of an off-site back-up database is on-going. The fact that all data are manually generated and all documentation is in hard paper copy meant that very little of the data could be verified, considering time constraints. However, an adequate sample of randomly selected source data and calculations were checked and reviewed in order to verify reliability. There is no reason to consider the data inappropriate for use in the estimation.
 
  Adequate controls, security and chain of custody of samples are in place at Blanket. Samples are documented from source to receiving bay at the assay laboratory. Samples for resource estimation are analysed by fire assay with gravimetric finish.
 
  The QAQC protocols and procedures for quality control need to be documented, revised accordingly and rigorously implemented. At the time of the visit, no clear QAQC policy was in place. Duplicate pulp samples of suspected high grade are infrequently submitted to a referee lab (not certified or accredited). The trigger for the duplicate pulp submission to an external laboratory is suspected under-reporting of results by the local lab. The result of this selective approach is very low volumes of check samples (small data set) to adequately assess and monitor the laboratory performance. Only a limited number of duplicate sample results over a narrow time period were made available for assessment at the time of the site visit. Further, these infrequent QAQC sample submissions and results are not being analysed statistically. The data are only visually assessed (not graphically assessed) and it is not clear how problems are identified and resolved. Further, the process of manual data capture and transcribing of data is prone to introducing errors. No certified/standard reference material or in-house/internal standards are being used to monitor analytical accuracy at the assay laboratory.
 
  Controls are in place to monitor achieved grades and production data against initial budgeted grades and planned production figures. The figures compare very well as reflected in block and mine call factors. Despite shortcomings of the QAQC systems, MSA considers independent sampling unwarranted in view of the fact that a substantial population of data would have to be generated first to be useful due to local variability in grade and the size of the Blanket Mine operation.
 
  In conclusion, MSA was able to review source data and the methodology of calculating the resource estimate which is acceptable for the type of deposit under consideration.
 

 

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The MSA QP considers the data to present a reasonable reflection of the actual performance of the mine.

 

 

 

 

 

 

 

 

 

 

 

 

 

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15      ADJACENT PROPERTIES
 
  Blanket Mine is one of only four surviving major gold producers from about 268 mines once worked in this greenstone belt. The other three are the nearby Vubachikwe, Freda at the belt’s western end and Jessie at the south-eastern end of the belt near West Nicholson (Figure 15-1) (Blanket Mine, 2009).
 

15.1 Vubachikwe

Information about the property is derived from Campbell and Pitfield (1994). The mine is located about 10 km northwest of Gwanda and is hosted in mafic and ultramafic greenstones and BIF. Nearby are three prominent southwest-dipping BIF units in which tight ‘Z’-shaped inflections occur frequently. It is possible that two of the BIF units, the Black Jack and Cheque (Error! Reference source not found.), are the limbs of an isoclinal synform. The most persistent unit is the central unit on which the Black Jack Mine was sited. The footwall unit includes the Long Jack Mine. The hanging-wall unit is laterally discontinuous but mines along its strike include Sabiwa, Lady Lina and Cheque (Campbell and Pitfield, 1994).

 

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Most of the gold at Vubachikwe is hosted in BIF. The BIF units vary in thickness from less than 5 m to 35 m. Numerous ore bodies have been worked and these comprise sulphide (arsenopyrite and pyrrhotite) and carbonate replacement bodies in the BIF. Most of the ore bodies strike north south,plungingtothenorthwestatabout68 ° and are associated with the ‘Z’-shaped inflections. Although Blanket and Vubachikwe work different ore bodies there would appear to be a structural relationship between them. Vubachikwe mine workings extend to depths of over 1 000 m below surface, compared with about 750 m at Blanket (AGS, 2006).

Up until the end of 1991 the Vubachikwe Mine produced almost 21 744 kg of gold at an average of 7 g/t. Between 2000 and 2005 Blanket Mine bought and treated the dumps at Vubachikwe in its metallurgical plant.

 

 

 

 

 

 

 

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16      MINERAL PROCESSING AND METALLURGICAL TESTING
 
16.1      Metallurgical Processing
 
  The Blanket crushing and milling circuit has recently been expanded from 600 t per day to approximately 1 800 t per day capacity (Caledonia Mining Corporation, 2011c) (Annual Management Discussion 30 March 2011). This is more than sufficient to handle the planned increases in mine production from the No. 4 Shaft Expansion Project, and, in future, from any ore mined from the satellite exploration properties currently being developed.
 
  All run of mine (ROM) ore is crushed underground to minus 80 mm, hoisted to surface and crushed to minus 12 mm in the surface 2-stage crushing circuit. This material is then fed into two 1.8 m by 3.6 m rod mills where it is milled down to approximately 70% passing 75 microns, after which the milled slurry is pumped through two 30 inch Knelson Gravity Concentrators where approximately 45% to 50% of total mill gold production is recovered as ‘gravity’ gold. Concentrate from the Knelson Concentrators is stored and re-concentrated on a Gemini table every 24 hours with the tailings rejoining the circuit. Gemini table concentrates go for direct smelting whilst the tailings are pumped to the classifying hydro cyclone. The Knelson Concentrator tails are pumped through cyclones whose underflow reports to the open-circuit regrind ball mill.
 
  The product from the Knelson tails cyclone overflow and the regrind mill discharge are pumped into a carbon-in-leach (CIL) plant consisting of eight, 600 m3 leach tanks where alkaline-cyanide leaching and simultaneous absorption of dissolved gold onto granular activated carbon takes place. Elution of the gold from the loaded carbon and subsequent electro-winning is done on site. During electro winning the gold is deposited on wire wool cathodes, the loaded cathodes are acid-digested and the resultant gold solids from acid digestion and the re-dressed gold concentrate from Knelson Concentrators are smelted into bars. The granular activated carbon is kiln regenerated before it is recirculated back to the CIL section.
 
  The gold bullion, in the form of Dore bars is delivered, as required by Zimbabwean gold-mining law, to the Government-operated Fidelity for sampling and onward delivery to the Rand Refineries in South Africa. Rand Refineries undertakes the final refining and sells the resultant gold with 100% of the proceeds being credited to Blanket’s Zimbabwean bank account in US dollars within 5 days of sale.
 
  The CIL plant has an overall design capacity of 3 800 t of milled ore per day, from its previous use for reclaimed tailings processing. The plant tailings from CIL are reduced in cyanide content and deposited on two licensed tailing impoundment areas sited close to the plant. The maximum amount of tailings water is pumped back to the metallurgical plant for re-use. Daily management and operation of the tailing deposition area is contracted out to the Zimbabwean subsidiary of specialized South African company “Fraser Alexander Tailings”. Tailings from the CIL circuit are passed through a cyanide destruction system before being pumped to the tailings dam with the effluent being recycled to the plant. The plant flow sheet is presented in Figure 16.1.
 

 

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16.2      Metallurgical Testing
 
  Blanket Mine has a long and well established track record in as far as metallurgical treatment of the various ores is concerned. Historically, Blanket Mine has achieved recoveries of between 88% and 92% of gold delivered to the plant. This is a good metallurgical recovery for a greenstone mine and hence metallurgical testing has been restricted to refinements in milling, reagent usage and reaction times.
 
  Metallurgical improvements during 2010 included the following:
 
  §      Rebuilding of the No. 6 Regrind mill sump and re-commissioning of the mill as is currently operating in the main milling circuit.
 

 

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§      Overhauling and re-commissioning of both Knelson concentrators. Metallurgical optimisation test work carried out on plant samples showed that there is little additional gold that can be recovered in the existing Gravity Gold recovery section where about 50% of the produced gold is recovered.
 
§      Additional test work was carried out on samples taken from the Gemini Table tails, the cyclone overflow and under flows and the CIL tails to determine the particle size and location of gold that escapes the gravity section.
 
§      The CIL circuit was completely equipped with most recent design of Agitator Gearboxes and impellor mechanisms, and the first leach tank converted to a pre- conditioning tank.
 
§      During the 1st quarter of 2011 the Activated Carbon regeneration kiln was refurbished.
 

 

 

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17      MINERAL RESOURCE AND MINERAL RESERVE ESTIMATES
 
  Information for this section has been extracted from the NI 43-101 report prepared by AGS (2006) and a Blanket Mine report entitled ‘Ore Reserves Comments 31.122010’.
 
  The Financial Year for Blanket Mine ends in December and includes an annual review and update of the Mineral Reserves and Mineral Resources. The estimation was completed by mine personnel following the methodology discussed in detail below (see Table 17-1).
 
  The Resources and Reserves have been classified according to the requirements and standards as detailed in the ‘CIM Standards on Mineral Resources and Mineral Reserves: Definitions and Guidelines’ (CIM, 2010).
 
17.1      Grade Data
 
  All grade data are plotted manually on 1:100 scale development assay plans with development and stoping outlines. There is currently no extant electronic database of co-ordinated assay data available – this is still under development with data capture and digitising ongoing.
 
17.2      Grade analysis
 
  There is no recent construction of a geostatistically based resource model. All ‘modelling’ is done using 2D interpretation of the 1:100 grade plots. An outline is constructed around the mineralised domain conforming to the Geologists mapping and understanding of the local orebody geometry and grade data (Figure 17-1). The Ore bodies are clearly distinguishable on their macroscopic properties and therefore the outlined mineralised domain coincides in almost all cases with the shape of the mapped shear envelope.
 
  The area is then measured using a planimeter and length weighted averages of the enclosed grade values are used to calculate the average grade of a block of ground defined as 7.5m above or below the current sample level (mining drifts or sub levels are 15m apart on level).
 
  The orebodies are clearly distinguishable on their macroscopic properties and therefore the outlined mineralised domain coincides in almost all cases with the shape of the mapped shear envelope.
 

 

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Figure 17-1

Assay plot with development showing the manually constructed outline of a mineralised domain


 

 
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Figure 17-2

Example of the manual calculation output for the mineralised domain shown in Figure 17-1

 

17.3 Density data and Analysis

The specific gravity of ore has been determined to be 2.86. This was the average of 174 samples measured during a study undertaken by the University of Zimbabwe in 1994. The mine average bulk density measurements applied to all mineralized zones should be investigated further to refine the density differences between the different ore types. In 2002, SRK recommended that over a period of time all assayed sections of core be measured for density to ascertain the variation and to determine if there is any correlation between grade and density. In 2006 AGS concurred with these comments and recommended that densities should be determined for the different ores exploited by Blanket Mine, and the adopted values be reviewed regularly by routine density measurements of evaluation samples. MSA cannot confirm if this recommendation has been implemented.

 

 

 

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  According to Blanket Mine, AR bodies are equivalent to DSR ores therefore despite the differences in terminology; all ore bodies have on average a very similar mineralogy. As sulphide minerals have the greatest effect on SG and because they vary greatly in concentration but have a nominal maximum of 5% in all of the ore types. Therefore if the possible effect of a consistent difference in SG were to be calculated it is unlikely to exceed 2.5% and is therefore not significant. However, SG differences within the ore bodies can have a much greater variation. These are cancelled out in the averaging process during the resource calculation.
 
17.4      Recovery and Modifying Factors
 
17.4.1      Mining Dilution
 
  Reserve tonnages are expressed inclusive of internal waste and diluting materials. Dilution is determined from the reconciliation of previously mined blocks which gives an average of 7.5% for most of the ore bodies on the mine (See table 17.2).
 
  For the purpose of Reserve grade estimation, the applied dilution is assigned a zero grade. This could have the effect of overcompensating in cases where mineralised zones have a gradational grade profile as the margin is approached. The massive AR ore bodies which supply the bulk of the ore for Blanket mine do not exhibit a marginal declining grade profile.
 
  Conservatism in this area is likely to be offset by possible grade overestimates due to the tendency to concentrate sampling in development along the higher grade zones of mineralised shears. However, the effect is considered negligible since the narrow ore bodies are exposed completely for reserve definition while the massive AR ore bodies do not have selectively high grade zones that can be followed by development.
 
17.4.2      Recovery
 
  Blanket Mine has a long and well established track record insofar as metallurgical treatment of the various ores is concerned. On average, approximately 50% of the gold is recovered as free gold, the remaining portion being contained within the sulphide minerals, pyrite, pyrrhotite and arsenopyrite. The quartz ore bodies are characterised by even higher proportions of free gold whereas the disseminated sulphide replacement ores have only small amounts of free gold.
 
  Over the period of operation of the current metallurgical plant, Blanket Mine has achieved recoveries of between 88% and 92% of gold delivered to the plant. This is a good metallurgical recovery for a greenstone mine and reflects the effects of high- grade metamorphism of the ores. Typically higher grades of metamorphism of greenstone ore bodies results in aggregation of minute particles of gold into particles that can be liberated by milling (Pearton, pers comm). In addition, gold micro-particles within the sulphide grains also appear to coalesce and are more readily liberated or dissolved following the milling process. The factors work in Blanket Mine’s favour and allows for the application of a low pay limit for all the ore bodies at Blanket Mine.
 

 

Page: 63


 
 
  A mill recovery factor of 90% has been used for the reserves declared on the 31 December 2010.
 
17.4.3      Summary of Cut-offs and Recovery Factors
 
  The cut-off grades used for the December 2010 Mineral Reserves and Mineral Resources update are given in Table 17-1.
 

Table 17-1

Cut-off grades used for the December 2010 Mineral Reserves and Mineral Resources Update

Au price in US$/oz    Cut-off grade 
1100    2.05 for Mineral Reserves 
1100    2.05 for Mineral Resources 

Upper cut-offs were determined from cumulative frequency diagrams for various ore bodies and the 90 percentile were used. The upper cut-offs (grades above this value are set to this maximum values, also known as grade capping) together with the dilution factors used in the 2010 Mineral Reserves and Mineral Resources statement are as listed below in Table 17-2.

Table 17-2

Upper cut-off grades and dilution factors used for the December 2010 Mineral Reserves and Mineral Resources Update

Ore body    Upper Cut-Off    Dilution Factor Applied 
BF    9.20g/t    7.5% 
1 O/B    13.50g/t    7.5% 
2 O/B    11.00g/t    7.5% 
2 Leader    8.50g/t    7.0% 
4 O/B    10.40g/t    7.0% 
Quartz Reef    14.00g/t    7.5% 
Jethro    8.40g/t    7.5% 
AR Main    9.20g/t    3.0% 
AR South    12.50g/t    7.0% 
Sheet    9.00g/t    7.5% 
Eroica    9.00g/t    9.0% 
Lima    9.50g/t    7.5% 
Eastern Lima    14.5g/t    7.5% 

Page: 64


17.5      Resource Classification
 
17.5.1      Inferred Mineral Resources
 
  Inferred Resource block boundaries are taken to the following limits where no point within the block is greater than the specified distance from a sample point:
 
  §      60 m on strike
 
  §      120 m on dip
 
   Down-dip continuity at two times strike is taken from the known limits of pay shoots on other ore bodies (Jethro and Blanket No.1) which have tapered outlines with depths three to four times maximum strike.
 
   The following exceptions limit the distance of a resource block boundary from a sample point:
 
  §      Where the 60 m limit exceeds the strike confines of the pay shoot defined by existing up-dip mining limits.
 
  §      Where peripheral intersections suggest a significant thinning of the mineralised zone.
 
  §      Where un-mineralised holes indicate termination of the mineralised zone. In this instance the boundary is taken half way between the mineralised and non- mineralised intercepts, with the restrictions of pay shoot boundary taking precedence.
 
  §      Where projected geological features (e.g. dykes and faults) are likely to affect the mineralised zone.
 
17.5.2      Indicated Mineral Resources
 
  Indicated Mineral Resources are generated from core drillholes, mainly from underground drifts, and in some instances from channel sampling of mine development. The latter are essentially extension blocks from Measured Mineral Resources and proven reserves. Indicated Mineral Resource block boundaries are taken to the following limits where no point within the block is greater than the specified distance from a sample point, with exceptions listed below:
 
  §      30 m on strike
 
  §      60 m on dip.
 
   The 30 m strike distance of a resource block from a borehole intersection is reduced in the following situations:
 
  §      Where the 30 m limit exceeds the strike confines of the ore shoot defined by the up-dip mining limits.
 

 

Page: 65


  §      Where peripheral intersections suggest a significant thinning of the mineralised zone.
 
  §      Where un-mineralised holes indicate termination of the mineralised zone. In this instance the boundary is taken half way between the mineralised and non- mineralised intercepts, with the restrictions of pay shoot boundary taking precedence.
 
  §      Where projected geological features (e.g. dykes and faults) are likely to affect the mineralised zone.
 
17.5.3      Measured Mineral Resources
 
  In practice, Measured Mineral Resources are not normally reported as these are directly converted upon completion of development and sampling to Proven Mineral Reserves due to the high confidence associated with them. Measured Mineral Resource blocks are taken to the following limits, where no point within the block is greater than the specified distance from a sample point, with exceptions listed below:
 
  §      7.5 m on strike
 
  §      7.5 m on dip.
 
   Down-dip continuity is determined by the mining method of 15 m lifts on the DSR type ore bodies and the quartz reefs, e.g. the Blanket Quartz Reef, Eroica and Eastern Lima.
 
17.6      Mineral Resource Statement
 
  MSA has not been able to confirm these mineral resources due to the lack of time to fully evaluate all the manual estimations and determinations of the small additional mineral resource (8%) added since 2006. The mineral resources prior to this were validated and approved by Kinross, SRK (2002) and AGS (2006) prior to the mines temporary closure in 2008 and have not changed since then (Pearton, pers. comm).
 
  Figure 17-3 illustrates the location of the resources on a long section of Blanket Mine.
 
17.6.1      2009 Mineral Resources
 
  Indicated and Inferred Mineral Resources as at 31 December 2009 are detailed in Table 17-3 and Table 17-4 and summarised in Table 17-5.
 

J2225 Blanket Mine NI 43-101 Technical Report – June 2011

Page: 66


Table 17-3

Indicated Mineral Resources for Blanket Mine as at 31 December 2009

BLANKET MINE (1983) (PRIVATE) LIMITED                 
 
MINERAL RESERVES AS AT 30.09.09    For Au-900         
 
INDICATED RESOURCES                     
 
OREBODY    TONNES AVERAGE INSITU GRADE DILUTED EST MILL    AU    EST 
AND BLOCK        WIDTH    (SAMPLED)    TONNES HEAD GRADE CONT    REC 
            g/t    g/t    kg    kg 
 
 
AR MAIN                         
320/335FW    21690    12.35    3.08             
380/395FW    14199    13.06    2.45             
600/630 FW2    57674    7.58    3.15             
630/660 FW2    57674    7.58    3.15             
510AR 34.46.48    40656    12.58    2.76             
510AR 35.47    31429    5.40    4.15             
510AR 36    8324    3.31    3.30             
510AR 49    4274    1.71    4.44             
510AR 66    16149    4.91    2.82             
510AR 57.59.70    13483    8.75    3.25             
510AR 60    48769    3.48    3.77             
510AR 62.69    25621    7.79    3.44             
510AR 63    26401    6.34    4.87             
510AR 64.71    12868    1.85    3.55             
ARM TOTAL    379211    7.39    3.40             
 
 
QUARTZ REEF                         
QTZNS1    6338    2.02    4.41             
QTZNS2    23069    2.30    7.23             
QTZNS3    6006    1.37    2.40             
QTZ TOTAL    35413    2.09    5.91             
 
 
EROICA                         
 
 
EROICA TOTAL    0    0.00    0.00             
 
LIMA                         
88/59    23900    2.83    4.65             
E17    13528    4.00    3.36             
E18    16019    2.21    4.17             
E19    31390    2.55    5.41             
20L/02/04    866    6.60    5.77             
20L/03/07    7839    2.60    4.99             
80L/03/01    3811    2.50    12.94             
110/140 HW S3    2091    1.22    5.78             
140/170 HW S3    2091    1.22    5.78             
170/200 HW S2    4612    2.34    2.62             
200/230 HW S2    4612    2.34    2.62             
LIMA TOTAL    101535    2.95    5.27             
 
AR SOUTH                         
 
 
TOTAL    0    0.00    0.00             
 
TOTAL INDICATED    516159    6.15    3.94             
 
 
12

 

Page: 67


Table 17-4
 
               Inferred Mineral Resources for Blanket Mine as at 31     
 
December 2009
 
 
BLANKET MINE (1983) (PRIVATE) LIMITED                 
 
MINERAL RESERVES AS AT 30.09.09       For Au-900             
 
INFERRED RESOURCES                     
 
OREBODY    TONNES AVERAGE NSITU GRADE DILUTED EST MILL AU    EST 
AND BLOCK        WIDTH    (SAMPLED) TONNES AD GRAD CONT    REC 
            g/t    g/t    kg    kg 
 
 
NO 1 OREBODY                         
NO1/1    75544    3.74    6.91             
NO1/2    248648    10.87    6.70             
NO1 OREBODY    324192    9.21    6.75             
 
NO 2 OREBODY                         
NO 2/3    65900    2.55    3.25             
NO 2/4    166024    4.21    3.44             
NO 2/5    133350    4.92    3.87             
N0 2/6    87763    3.77    3.11             
NO 2 0/B TOTAL    453037    4.09    3.48             
 
BF                         
 
BF TOTAL    0    0.00    0.00             
 
ARS                         
 
ARS TOTAL    0    0.00    0.00             
 
QUARTZ REEF                         
QTZ4    67649    3.73    12.96             
QTZ5    11818    2.00    3.34             
QTZ6    6374    2.50    9.71             
QTZ7    98456    5.00    8.87             
QTZ TOTAL    184297    4.25    10.05             
 
LIMA                         
E16    37890    1.86    4.50             
L37    25353    1.25    3.15             
L43    8460    2.55    5.67             
L44    50714    5.07    3.53             
LIMA TOTAL    122417    3.11    3.90             
 
JETHRO                         
J6FW    10742    1.74    3.50             
J7HW    2110    1.20    4.24             
J7CZ    8009    6.22    3.37             
J7FW    14994    2.43    4.61             
J8FW    10539    2.19    4.00             
J9CZ    5743    3.15    4.22             
J15CZ    5431    2.05    4.95             
JETHRO TOTAL    57568    2.78    4.10             
 
EROICA                         
E27/E36H/W    26008    2.91    6.33             
E33 H/W    32371    1.44    5.75             
E39 H/W    431429    10.84    3.19             
E41    17642    1.69    3.71             
E42    14397    1.20    3.21             
E43    31990    8.79    7.98             
E44    122042    13.44    4.16             
E47    51503    2.71    4.21             
E48    59266    6.01    3.33             
E50    17368    1.08    4.71             
E52    1330    1.93    2.87             
WRS 01    207121    2.84    9.03             
WRS 03    312920    4.17    5.44             
EROICA TOTAL    1325387    6.92    5.04             
 
T OT AL INFERRED    2466898    6.22    5.27             

J2225 Blanket Mine NI 43-101 Technical Report – June 2011

Page: 68


Table 17-5

Summary of Mineral Resources as at 31 December 2009 (Source: Blanket Mine, 2011)

Summary of Mineral Resources

Property:    Blanket Mine             
Date:    31-Dec-09                 
Gold Price:    US$900/oz                 
Silver Price:                     
 
Resource Summary                 
 
Classification tonnes    grade    Au ounces    grade    Ag ounces 
    (x 1,000)    (Au g/t)    (x 1,000)    (Ag g/t)    (x 1,000) 
Measured    -    -    -    -    - 
Indicated    516.2    3.94    65.4    -    - 
TOTAL    516.2    3.94    65.4    -    - 
Inferred    2,466.9    5.27    418.0    -    - 
TOTAL    2,983.1    5.04    483.4    -    - 
 
Notes:                     
Resources to be reported exclusive of reserves         

17.6.2      2010 Mineral Resources
 
  Indicated and Inferred Mineral Resources as at 31 December 2010 are detailed in Table 17-6 and Table 17-7 and summarised in Table 17-8.
 

 

Page: 69


Table 17-6
 
               Indicated Mineral Resources for Blanket Mine as at 31 December 2010     
 
BLANKET MINE (1983) (PRIVATE) LIMITED                     
 
MINERAL RESERVES AS AT 31.12.2010        For Au Price US$1100/ounce             
 
INDICATED RESOURCES                         
 
OREBODY    TONNES AVERAGE INSITU GRADE DILUTED EST MILL    AU    EST 
AND BLOCK        WIDTH    (SAMPLED)    TONNES HEAD GRADE    CONT    REC 
            g/t    g/t    kg    kg 
 
 
AR MAIN                         
320/335FW    21690    12.35    3.08             
380/395FW    14199    12.60    2.48             
600/630 FW2    57674    7.58    3.15             
630/660 FW2    57674    7.58    3.15             
510AR 34.46.48    40656    12.58    2.76             
510AR 35.47    31429    5.40    4.15             
510AR 36    8324    3.31    3.30             
510AR 49    2654    1.71    4.44             
510AR 66    16149    4.91    2.82             
510AR 57.59.70    13483    8.75    3.25             
510AR 60    48769    3.48    3.77             
510AR 62.69    25621    7.79    3.44             
510AR 63    26401    6.34    4.87             
510AR 64.71    12868    1.85    3.55             
ARM TOTAL    377591    7.39    3.40             
 
 
QUARTZ REEF                         
QTZNS1    6338    2.02    4.41             
QTZNS2    23069    2.30    7.23             
QTZNS3    6006    1.37    2.40             
QTZ TOTAL    35413    2.09    5.91             
 
 
EROICA                         
 
 
EROICA TOTAL    0    0.00    0.00             
 
LIMA                         
88/59    23900    2.83    4.65             
E17    13528    4.00    3.36             
E18    16019    2.21    4.17             
E19    31390    2.55    5.41             
20Lima East 02/04,03/07    12119    6.27    3.86             
LIMA TOTAL    96956    3.23    4.54    18876         
 
AR SOUTH                         
 
 
TOTAL    0    0.00    0.00             
 
TOTAL INDICATED    509960    6.23    3.79             

 

Page: 70


Table 17-7

Inferred Mineral Resources for Blanket Mine as at 31 December 2010

BLANKET MINE (1983) (PRIVATE) LIMITED                 
 
MINERAL RESERVES AS AT 31.12.2010    For Au Price US$1100/ounce         
 
INFERRED RESOURCES                     
 
OREBODY    TONNES    AVERAGE INSITU GRADE DILUTED EST MILL AU    EST 
AND BLOCK        WIDTH    (SAMPLED) TONNES AD GRAD CONT    REC 
            g/t    g/t    kg    kg 
 
 
NO 1 OREBODY                         
NO1/1    75544    3.74    6.91             
NO1/2    248648    10.87    6.70             
NO1 OREBODY    324192    9.21    6.75             
 
NO 2 OREBODY                         
NO 2/3    65900    2.55    3.25             
NO 2/4    166024    4.21    3.44             
NO 2/5    133350    4.92    3.87             
N0 2/6    87763    3.77    3.11             
NO 2 0/B TOTAL    453037    4.09    3.48             
 
BF                         
 
BF TOTAL    0    0.00    0.00             
 
ARS                         
 
ARS TOTAL    0    0.00    0.00             
 
QUARTZ REEF                         
QTZ4    67649    3.73    12.96             
QTZ5    11818    2.00    3.34             
QTZ6    6374    2.50    9.71             
QTZ7    98456    5.00    8.87             
QTZ TOTAL    184297    4.25    10.05             
 
LIMA                         
E16    37890    1.86    4.50             
L37    25353    1.25    3.15             
L43    8460    2.55    5.67             
L44    50714    5.07    3.53             
LIMA TOTAL    122417    3.11    3.90             
 
JETHRO                         
J6FW    10742    1.74    3.50             
J7HW    2110    1.20    4.24             
J7CZ    8009    6.22    3.37             
J7FW    14994    2.43    4.61             
J8FW    10539    2.19    4.00             
J9CZ    5743    3.15    4.22             
J15CZ    5431    2.05    4.95             
JETHRO TOTAL    57568    2.78    4.10             
 
EROICA                         
E27/E36H/W    26008    2.91    6.33             
E33 H/W    32371    1.44    5.75             
E39 H/W    431429    10.84    3.19             
E41    14207    1.69    3.71             
E42    11215    1.20    3.21             
E43    11904    8.79    7.98             
E44    91115    13.44    4.16             
E47    51503    2.71    4.21             
E48    59266    6.01    3.33             
E50    16343    1.08    4.71             
E52    1330    1.93    2.87             
WRS 01    207121    2.84    9.03             
WRS 03    312920    4.17    5.44             
EROICA TOTAL    1266732    6.77    5.02             
 
T OT AL INFER RED    2408243    6.12    5.27             

 

Page: 71


Table 17-8

Summary of Mineral Resources as at 31 December 2010 (Source: Blanket Mine, 2011)

Summary of Mineral Resources

Property:    Blanket Mine                 
Date:    31-Dec-10                 
Gold Price:    US$1100/oz                 
Silver Price:                     
 
Reserve Summary for US$1100/oz             
 
Classification    tonnes    grade    Au ounces    grade    Ag ounces 
    (x 1,000)    (Au g/t)    (x 1,000)    (Ag g/t)    (x 1,000) 
Measured    -    -    -    -    - 
Indicated    510.0    3.79    62.1    -    - 
TOTAL    510.0    3.79    62.1    -    - 
Inferred    2,408.2    5.27    408.0    -    - 
TOTAL    2,918.2    5.01    470.2    -    - 
 
Notes:                     
Resources to be reported exclusive of reserves         

 

Page: 72


Figure 17-3

Long section of Blanket Mine showing the December 2010 Mineral Resources and Mineral Reserves


 

 

 
Page: 73


17.7      Mineral Reserve Estimate
 
  MSA has not been able to confirm these mineral resources due to the lack of time to fully evaluate all the manual estimations and determinations of the small additional mineral resource (8%) added since 2006. The mineral resources prior to this were validated and approved by Kinross, SRK (2002) and AGS (2006) prior to the mines temporary closure in 2008 and have not changed since then (Pearton, pers. comm).
 
17.7.1      2009 Mineral Reserves
 
  Proven and Probable Mineral Reserves as at 31 December 2009 are detailed in Table 17-9 and Table 17-10.
 

 

Page: 74


Table 17-9
 
Mineral Reserves as at 31 December 2009
 
 
BLANKET MINE (1983) (PRIVATE) LIMITED                     
 
MINERAL RESERVES AS AT 31.12.09        For Au-900             
 
MINERAL RESERVES TOTALS                         
 
OREBODY    INSITU AVERAGE INSITU GRADE DILUTED EST MILL    AU    EST 
AND BLOCK    TONNES    WIDTH (SAMPLED) TONNES HEAD GRADE CONT    REC 
            g/t        g/t    kg    kg 
 
PROVED                             
1 OREBODY    9219    1.94    5.40    9910    5.02         
2 OREBODY    20882    2.83    4.38    22448    4.07         
BF    17926.42    1.54    3.45    19271    3.21         
QUARTZ    36260    2.24    5.35    38980    4.98         
2 LEADER    30789    3.56    3.70    32944    3.45         
4-OREBODY    22191    4.97    4.55    23744    4.25         
AR    159145    9.29    3.64    163919    3.54         
ARS    487873    21.06    4.26    522024    3.98         
JETHRO    6099    2.66    4.23    6556    3.94         
EROICA    51497.94    6.52    4.59    56133    4.21         
LIMA    15203    2.04    4.08    16343    3.79         
SHEET    15890    4.64    4.53    17082    4.21         
Total Proved    872975    14.45    4.20    929355    3.95    3667    3263 
 
PROBABLE                             
1 OREBODY    6006    3.30    3.25    6456    3.02         
2 OREBODY    46707    2.76    4.31    50210    4.01         
BF    60461    2.15    4.06    64996    3.78         
QUARTZ    98940    2.54    4.40    106361    4.09         
4 OREBODY    45645    4.16    3.98    48840    3.72         
2 LEADER    33032    5.23    3.16    35344    2.95         
JETHRO    10436    2.53    4.23    11219    3.93         
AR    729635    9.81    3.47    751524    3.37         
ARS    1018652    23.93    4.16    1089958    3.89         
EROICA    183831    5.30    4.95    200376    4.54         
LIMA    115266    3.22    3.77    123911    3.51         
SHEET    51184    6.47    4.00    55023    3.72         
Total Probable    2399795    14.22    3.98    2544217    3.76    9555    8504 
 
PROBABLE PILLARS                             
NO1    12862    5.47    6.72    13827    6.25         
NO2    14664    2.62    4.42    15764    4.12         
BF    12807    2.08    4.13    13768    3.84         
NO4    85849    3.12    5.30    91858    4.95         
2 LEADER    14265    4.17    3.53    15264    3.30         
QZ REEF    47142    2.63    4.58    50678    4.26         
JETHRO    18114    2.79    4.54    19473    4.23         
AR    160030    13.06    4.12    164831    4.00         
ARS    88822    21.74    4.29    95040    4.01         
SHEET    18203    12.53    3.68    19568    3.42         
EROICA    21651    4.91    5.55    23600    5.09         
LIMA    46477    6.79    4.41    49963    4.10         
Total Probable Pillar    540886    9.81    4.51    573631    4.26    2441    2172 
 
INDICATED                             
NO1                             
NO2                             
BF                             
JETHRO                             
QTZ                             
BQR EXT.    35413    2.09    5.91                 
AR    379211    7.39    3.40                 
ARS    0    0.00    0.00                 
EROICA    0    0.00    0.00                 
LIMA    101535    2.95    5.27    0    0.00         
Total Indicated    516159    6.15    3.94                 
 
INFERRED                             
NO1    324192    9.21    6.75                 
NO2    453037    4.09    3.48                 
BF    0    0.00    0.00                 
JETHRO    57568    2.78    4.10                 
QTZ    184297    4.25    10.05                 
AR    0    0.00    0.00                 
ARS    0    0.00    0.00                 
EROICA    1325387    6.92    5.04                 
LIMA    122417    3.11    3.90                 
Total Inferred    2466898    6.22    5.27                 
 
TOTAL INVENTORIES    6796713    10.38    4.52    4047203    3.87    15663    13940 

Page: 75


        Table 17-10             
   

Mineral Inventory as at 31 December 2009 

        
 
    BLANKET COMPLEX                 
 
    MINERAL INVENTORY                 
    CIM SUMMARIES                 
    (as @ 30.12.09)        For Au-900 (Reserves)         
            Au-900 (Resoruces)         
CATEGORY    ESTIMATED    EST MILL    %    Au price    Pay Limit     
    TONNES    HEAD GRADE        US$/oz    g/t     
                   t    g/t                 
 
 
Proved *    929,355    3.95    13.22    900               2.30    117,883 
Total Available    929,355    3.95    13.22    900               2.30    117,883 
Probable*    2,544,217    3.76    36.19    900               2.30    307,199 
Probable Pillars*    573,631    4.26    8.16    900               2.30    78,479 
Total Reserves*    4,047,203    3.87    57.57    900               2.30    503,562 
 
Indicated Resources**    516,159    3.94    7.34    900               2.30    65,387 
Inferred Resources**    2,466,898    5.27    35.09    900               2.30    417,991 
Total Resources**    2,983,057    5.04    42.43    900               2.30    483,378 
 
Total Mineral Inventories    7,030,260    4.37    100.00            986,940 
 
* Reserves tonnages are fully diluted                     
**Resources tonnages are in-situ    I.e no modifying factors have been applied                 

17.7.2      2010 Reserves
 
  Proven and Probable Mineral Reserves as at 31 December 2010 are detailed in Table 17-11 and Table 17-12.
 

 

Page: 76


Table 17-11
 
Mineral Reserves as at 31 December 2010
 
 
BLANKET MINE (1983) (PRIVATE) (LIMITED)                         
 
MINERAL RESERVES AS AT 31.12.2010                         
 
           For Au-US$1100/ounce(Reserves)                 
        For Au-US$1100/ounce(Resources)                 
SUMMARY                                 
 
OREBODY               TONNES AVERAGE INSITU GRADE DILUTED    EST MILL    AU    EST 
AND BLOCK            WIDTH    (SAMPLED) TONNES HEAD GRADE CONT    REC 
                g/t        g/t    kg    kg 
 
PROVED        968090    12.42    4.24    1031089    3.98       4107           3655 
PROBABLE        2369479    12.99    3.88    2513717    3.66       9191           8180 
PROBABLE PILLARS    556258    12.99    4.43    590094    4.18       2467           2195 
INDICATED        509960    6.23    3.79                 
INFERRED        2408243    6.12    5.27                 
TOTAL MINE        6812030    9.97    4.46    4134900    3.81    15765    14031 
 
OREBODY    % DISTRIBUTION OF AVAILABLE MINERAL RESERVES                 
1 OREBODY    0.96    9212    1.94    5.40    9903    5.02         
2 OREBODY    2.18    20882    2.83    4.38    22448    4.07         
BF    1.87    17974.42    1.54    3.43    19323    3.19         
QUARTZ    4.14    39689    2.35    5.16    42666    4.80         
2 LEADER    3.27    31514    3.65    3.68    33720    3.44         
4-OREBODY    2.56    24643    5.04    4.45    26368    4.15         
AR    17.33    173491    9.11    3.60    178696    3.49         
ARS    54.92    529205    17.73    4.51    566249    4.21         
JETHRO    0.64    6099    2.66    4.23    6556    3.94         
EROICA    7.94    75073    6.52    3.61    81830    3.31         
LIMA    2.53    24251    1.96    3.91    26070    3.63         
SHEET    1.67    16057    4.60    4.52    17261    4.20         
    100.00    968090    12.42    4.24    1031089    3.98    4107    3655 
 
 
LOCATION OF AVAILABLE RESERVES                         
    %                             
Above 9 Level    8.75    84683    2.77    4.10    90857    3.82         
Above 14 Level    17.34    167824    9.84    3.72    177527    3.52         
Above 18 Level    31.04    300457    15.98    4.09    322703    3.81         
Above 22 Level    42.88    415126    12.86    4.59    440002    4.33         
GRAND TOTAL    100.00    968090    12.42    4.24    1031089    3.98    4107    3655 
 
 
GRADING OF AVAILABLE RESERVES ON GOLD CONTENT                     
    %                             
2.10-2.99g/t    1.44    13951    4.14    2.68    14698    2.54         
3.00-3.99g/t    50.32    487128    10.21    3.59    516263    3.39         
4.00-4.99g/t    29.93    289725    15.26    4.61    310219    4.30         
5.00-5.99g/t    11.71    113330    13.02    5.13    121431    4.79         
6.00-6.99g/t    6.49    62838    17.44    6.30    67277    5.88         
7.00g/t-over    0.12    1118    1.52    7.87    1202    7.32         
TOTAL    100.00    968090    12.42    4.24    1031089    3.98    4107    3655 

Page: 77

        Table 17-12             
   

Mineral Inventory as at 31 December 2010 

    
 
    BLANKET COMPLEX                 
 
    MINERAL INVENTORY                 
               CIM SUMMARIES                 
                               (as @ 31.12.2010) For Au Price US$1100/ounce (Reserves)         
                     Au-Price US$1100/ounce (Resources)                 
CATEGORY         ESTIMATED    EST MILL    %    Au price    Pay Limit     
    TONNES    HEAD GRADE        US$/oz    g/t     
                   t    g/t                 
 
 
Proved *    1,031,089    3.98    14.62           1,100    2.05    132,050 
Total Available    1,031,089    3.98    14.62           1,100    2.05    132,050 
Probable*    2,513,717    3.66    35.64           1,100    2.05    295,496 
Probable Pillars*    590,094    4.18    8.37           1,100    2.05    79,309 
Total Reserves*    4,134,900    3.81    58.63           1,100    2.05    506,855 
 
Indicated Resources**    509,960    3.79    7.23           1,100    2.05    62,115 
Inferred Resources**    2,408,243    5.27    34.14           1,100    2.05    407,808 
Total Resources**    2,918,203    5.01    41.37           1,100    2.05    469,924 
 
Total Mineral Inventories    7,053,103    4.31    100.00            976,779 
 
* Reserves tonnages are fully diluted                     
**Resources tonnages are in-situ    I.e no modifying factors have been applied                 

Page: 78


18      OTHER RELEVANT DATA AND INFORMATION
 
  No additional information or explanation is deemed necessary to make this technical report understandable and not misleading.
 

 

 

 

 

 

 

 

 

 

 

 

 

 

Page: 79


19      INTERPRETATION AND CONCLUSIONS
 
19.1      Project Risks
 
19.1.1      Sampling
 
  The use of sludge holes in the calculation of the resource is not recommended due to the possibility of fines loss during sample capture. The mixing of different sample sizes in the resource calculation results in sample support induced errors. Either the resource estimate has to be all chip or all drill sample. Failing which, the sludge samples should be discarded in favour of chip samples and chips samples in favour of drilling data. To be fair, the mine has been operating using the combined data for some time and it would appear to be adequate, however some improvements could be made.
 
  It has been indicated to MSA that the sludge holes are not used for resource estimation, only resource delineation and therefore the volume variance issue and confidence in the quality of the sludge data is not necessarily a concern with regards the resource estimation.
 
19.1.2      Assay
 
  The only QAQC being done is the occasional/infrequent submission of duplicate pulp samples from the on-site laboratory to uncertified Duration Laboratory (owned by Duration Gold Limited which operates the adjacent Vubachikwe Gold Mine) in Bulawayo. This is done mainly to check the on-site results if there is cause. Internal duplicates for all sample types shows good correlation and agreement. Limestone blanks are also inserted at some unknown interval in the sample batches, to monitor contamination. There are no certified reference materials (CRMs) inserted.
 
  This comprehensive lack of control on the assay data is a point of concern and does not conform to industry best practice.
 
  It is understood that exporting of samples to external laboratories can be complicated. Now that there is a certified laboratory in KweKwe (Antech Laboratory), it becomes feasible to implement a full QAQC program. Insertion of CRMs (independent of an external referee lab) would be extremely desirable.
 
  The manual transcription of data both in the laboratory and in the capturing of the data onto the 1:100 assay plans and then into the reserve calculation sheets is an area that needs improvement to prevent cumulative transcription errors.
 
19.1.3      Mineral Resources
 
  The definition of the Mineral Resources using manual interpretation of the sampling data and the geologists’ orebody knowledge is reasonable. The lack of 3D visualisation in a complex orebody such as this does raise some concerns around geotechnical stability of the stopes and associated development as well as the volumes of the Mineral Resources as the assay footprint is projected 7.5m above and below the level.
 

 

Page: 80


Arguably 3D models have a similar degree of extrapolation and since the operation is and has been functioning well for many years using this method, there is no immediate point of concern with the volume definition.

The use of length weighted grade calculations for resource estimation is not ideal as it can result in severe conditional bias; it ignores the spatial relationship of the data, and is affected by clustering of values in high grade domains. While this method is not ideal, it may be used to declare global in situ Mineral Resources, however local estimation at a level-by-level basis should be avoided (Vann, 2008).

Again, the fact that the mine is achieving good reconciliation factors (Mine Call) using this estimation method speaks to the reasonability of the methodology within the context of this mine.

19.2 Project Opportunities

The increase in the gold price remains an important opportunity for the Blanket Mine property. The increased revenue will provide necessary funds for exploration on site from underground platforms to increase the resource base. The Zimbabwean economy has been dollarized such that the hyper inflationary regiment that was previously in effect has eased off. The marketing of gold in Zimbabwe has been relaxed with direct export now permitted. Blanket Nine now receives proceeds from sell at spot gold price in USD and can retain 100% in hard currency to pay for operations. Most inputs for the mine operations are imported from South Africa. The problem with this for the mine is the strengthening of the rand against the dollar.

The already established infrastructure at the property positions it to direct resources towards increasing production rather than baseline capital investment since most of the equipment is in place. The commissioning of the Number 4 shaft and the standby power generator set positions the mine to increase production. This coupled with a loyal, long serving and experienced staff works in the operation’s favour as necessary skills are retained.

The property has robust orebodies whose down dip extensions below the current deepest level on the mine are yet to be fully explored. The adjacent property, the Vubachikwe Gold Mine has payshoots extending below 1 km depth. Potential to find new orebodies and increase the resource base exists particularly from platforms afforded by haulage development.

There is an enormous capacity at the plant since Blanket Mine stopped processing old slimes. This capacity provides opportunity to increase production considerably without the need for massive investment in the process plant.

 

Page: 81


20      RECOMMENDATIONS
 
20.1      Sampling and Resource
 
  Sludge sampling is viewed with caution in the international mining industry and while is it considered to have its place and that it can be somewhat better than poorly conducted chip sampling it is still considered sub-optimal for resource definition. Instead of sludge sampling, short AQ or BQ core holes could be drilled and sampled. This would result in a larger sample, more geological detail and therefore validate the increase in drilling cost. If the sludge holes are definitely not used for resource estimation then this suggestion may fall away.
 
  It is suggested that the capturing of the existing and new data into a robust database system be accelerated. The less manual handling of data the better, failing which, the use of a rigorous double entry and 10% (minimum) checking system for data in the laboratory and the plotting on the plans be implemented (if it hasn’t already been done). A LIMS system for the laboratory would also be appropriate and ideal.
 
  The use of Certified Reference Materials (CRMs) is desirable and necessary to get convergence between Blanket mines practices and International standards for assays. The availability of a certified laboratory in Zimbabwe (Antech Laboratory, recertified by SANAS in 2009 – Appendix 5) makes the possibility for an external referee laboratory a distinct possibility.
 
  Modelling of the resource in 3D using the electronic sampling database is also a strong recommendation as this will aid in the accurate definition of mineable envelopes as well as reduce the subject bias of which samples contribute to the resource grade. It is understood that the cost of implementing such a system may be too high and therefore impractical. The manual definition of the resource envelope need not be abandoned as this effectively uses the geologist skills in interpreting the orebody.
 

 

Page: 82


21      REFERENCES
 
  Applied Geology Services (2006) Independent Qualified Person’s Report, Blanket Mine, Zimbabwe. (July 2006).
 
  Blanket Mine (1983) (Pvt) Limited (2009) Blanket Mine. (September 2009).
 
  Blanket Mine (1983) (Pvt) Limited (2009) Decommissioning and Reclamation Cost Estimate. (November 2009).
 
  Blanket Mine (1983) (Pvt) Limited (2011) Mineral Reserves and Resources as at 31.12.2010.
 
  Caledonia Mining Corporation (2011a) www.caledoniamining.com. (Accessed June 2011).
 
  Caledonia Mining Corporation (2011b) January 2011 Shareholder Update (24 January 2011).
 
  Caledonia Mining Corporation (2011c) Annual Management Discussion and Analysis (30 March 2011).
 
  Caledonia Mining Corporation (2011d) Caledonia Mining 2010 Fourth Quarter and Annual Results and Management Conference Call (31 March 2011).
 
  Caledonia Mining Corporation (2011e) Condensed Interim Consolidated Financial Statements of Caledonia Mining Corporation for the Three-Month Period Ended March 31, 2011 (Unaudited).
 
  Caledonia Mining Corporation (2011f) Annual Information Form Renewal: Form 51 102F2 prescribed by National Instrument 51 102 (31 March 2011).
 
  Caledonia Mining Corporation (2011g) Caledonia Mining 2010 Fourth Quarter, and Installation Commissioned, and Refiling of First Quarter Financial Statements to Provide Additional IFRS Information (30 May 2011).
 
  Caledonia Mining Corporation (2011h) Caledonia Mining First Quarter 2011 Results
 
  (18 May 2011).
 
  Campbell, S.D.G. and Pitfield, P.E.J. (1994) Structural Controls of Gold Mineralisation in the Zimbabwe Craton: Exploration Guidelines. Zimbabwe Geological Survey, Bulletin 101: 217 218.
 
  Canadian Institute of Mining, Metallurgy and Petroleum (CIM) (2010) CIM Definition Standards on Mineral Resources and Mineral Reserves (27 November 2010).
 
  Fraser Alexander Zimbabwe (Pty) Ltd (2010). Tailings Dam Audit Report for Blanket Mine. Dated March 2010.
 

 

Page: 83


Foster, R.P. (1989) Archaean gold mineralisation in Zimbabwe: implications for metallogenesis and exploration. In: Keays, R., Ramsey, W.R. The Geology of Gold Deposits: The Perspective in 1988

Fuchter, W.A.H. (1990) The Geology and Gold Mineralisation of the North Western Mining Camp, Gwanda Greenstone Belt, Zimbabwe. PhD Thesis, Queen’s University (Unpublished). Cited in Campbell and Pitfield (1994), Applied Geology Services, 2006).

Master, S., Bekker, A. and Hofmann, A. (2010) A review of the stratigraphy and geological setting of the Palaeoproterozoic Mgondi Supergroup, Zimbabwe Type locality for the Lomagundi carbon isotope excursion. Precambrian Research, 182 (4): 254 273.

Petters, S.W. (1991) Regional Geology of Africa: Lecture Notes in Earth Sciences 40. Berlin: Springer-Verlag, 722 pp.

Robert, F. (1996) Diversity of Archaean Lode Gold Deposits and Implications for Exploration. Course Notes, AMF Workshop Course No. 973/96, Australian Mineral Foundation, Adelaide.

Saager, R., Oberthür, T. and Tomschi, H.-P. (1987) Geochemistry and mineralogy of banded iron formation hosted gold mineralisation in the Gwanda Greenstone Belt, Zimbabwe. Economic Geology, 82 (8), 2017 2032.

Steffen, Robertson and Kirsten (Canada) Inc. (SRK) (2002) Independent Technical Report on the Blanket Mine, Zimbabwe.

Tyndale-Biscoe, R. (1940) The geology of the country around Gwanda. Southern Rhodesia Geological Survey Bulletin, 36: 204 pp.

Vann, J. (2008) Applied Geostatistics for Geologists and Mining Engineers, Perth, Quantitative Geoscience Pty Ltd

 

Page: 84


22      DATE AND SIGNATURE PAGE
 
  The undersigned, Bruno Bvirakare, contributed to sections 1 to 15 inclusive and sections 17 to 21 inclusive of this Technical Report, titled “NI 43-101 Technical Report on the Blanket Gold Mine, Zimbabwe”, with an effective date of 28 June 2011, in support of the public disclosure of technical aspects of the Blanket Gold Mine Property. The format and content of this report are intended to conform to Form 43-101F1 of National Instrument 43-101 of the Canadian Securities Administrators.
 
  Signed,
 

Name:    Bruno Bvirakare    BSc, PrSciNat 
Date:    28 June 2011     

The undersigned, Justin Glanvill, contributed to sections 11 to 13 inclusive and sections 17, 19 and 20 inclusive of this Technical Report, titled “NI 43-101 Technical Report on the Blanket Gold Mine, Zimbabwe”, with an effective date of 28 June 2011, in support of the public disclosure of technical aspects of the Blanket Gold Mine Property. The format and content of this report are intended to conform to Form 43-101F1 of National Instrument 43-101 of the Canadian Securities Administrators.


Name:    Justin Glanvill    BSc (Hons), GDE, MGSSA, PrSciNat 
Date:    28 June 2011     

Page: 85


The undersigned, Joel Mungoshi, contributed to sections 16 and 23 of this Technical Report, titled “NI 43-101 Technical Report on the Blanket Gold Mine, Zimbabwe”, with an effective date of 28 June 2011, in support of the public disclosure of technical aspects of the Blanket Gold Mine Property. The format and content of this report are intended to conform to Form 43-101F1 of National Instrument 43-101 of the Canadian Securities Administrators.

Signed,


Name:    Joel Mungoshi    HND, BSc (Hons) Met Eng, MDP, MBL, MSAIMM 
Date:    28 June 2011     

The undersigned, John Sexton, contributed to section 23 of this Technical Report, titled “NI 43-101 Technical Report on the Blanket Gold Mine, Zimbabwe”, with an effective date of 28 June 2011, in support of the public disclosure of technical aspects of the Blanket Gold Mine Property. The format and content of this report are intended to conform to Form 43-101F1 of National Instrument 43-101 of the Canadian Securities Administrators.


Name:    John Sexton    BSc, BCom, MBL 
Date:    28 June 2011     

 

Page: 86


The undersigned, Vaughn Duke, contributed to section 23 of this Technical Report, titled “NI 43-101 Technical Report on the Blanket Gold Mine, Zimbabwe”, with an effective date of 28 June 2011, in support of the public disclosure of technical aspects of the Blanket Gold Mine Property. The format and content of this report are intended to conform to Form 43-101F1 of National Instrument 43-101 of the Canadian Securities Administrators.

Signed,


Name: Vaughn Duke MPMI, MMASA

PrEng, PMP, BSc Min Eng (Hons), MBA, FSAIMM, MECSA,

  Date: 28 June 2011

The undersigned, Robert Charles Croll, undertook peer review of the entire Technical Report, titled “NI 43-101 Technical Report on the Blanket Gold Mine, Zimbabwe”, with an effective date of 28 June 2011, in support of the public disclosure of technical aspects of the Blanket Gold Mine Property. The format and content of this report are intended to conform to Form 43-101F1 of National Instrument 43-101 of the Canadian Securities Administrators.


Name: Date:

Robert Charles Croll 28 June 2011

 

Page: 87


The undersigned, Mike Robertson, undertook peer review of the entire Technical Report, titled “NI 43-101 Technical Report on the Blanket Gold Mine, Zimbabwe”, with an effective date of 28 June 2011, in support of the public disclosure of technical aspects of the Blanket Gold Mine Property. The format and content of this report are intended to conform to Form 43-101F1 of National Instrument 43-101 of the Canadian Securities Administrators.


Name: Date:

Mike Robertson 28 June 2011

 

Page: 88


23      ADDITIONAL REQUIREMENTS FOR TECHNICAL REPORTS ON DEVELOPMENT PROPERTIES AND PRODUCTION PROPERTIES
 
23.1      Mining Operations
 
  The Blanket Mine is located on the northwest limb of the Gwanda Greenstone belt. The two main types of mineralisation are a disseminated sulphide replacement type, which comprises the bulk of the ore shoots, and quartz veins that tend to have long strikes but are not uniformly mineralised. Mining is from a mix of ore bodies (Figure 8-1), which comprise the Jethro deposits in the south, through Blanket itself to the Feudal, AR South, AR Main, Sheet, Eroica and Lima deposits in the north.
 
  Blanket is considered to be the primary orebody with Jethro situated some 400 m to the south and AR some 500 m to the north. Eroicas is about 1.3 km further north and Lima an additional 1.2 km north of the Blanket proper. It is understood that current mining and development is in the Blanket, the AR Main, Eroica and AR South orebodies. The mine reportedly produced around 12 ktpm at a head grade of about 3.90 g/t Au (Table 23-1) which is generally consistent with production observed from similar Greenstone Belt operations (i.e. the generally larger and longer life mines).
 
Table 23-1
Annual Production Results
    2008    2009    2010 
Ore mined (kt)    81.6    94.7    149.3 
Capital Development (m)    -    165    365 
ROM Development (m)    472    1,267    2,455 
Ore milled (kt)    81.6    103.4    153.5 
Head grade (g/t)    3.33    3.75    3.90 
Production cost (USD per ounce)    663    744    751 

23.1.1      Mining Process
 
  Blanket Mine uses mining methods that are commonly employed and well understood by Greenstone Belt miners who generally have to deal with steep tabular to massive ore bodies. Since the nature of the ore bodies vary, the exact mining practices are tailored to suit the specific attributes of each particular orebody. The mining methods employed represent experience gained from many years of mining.
 

 

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The different rock types at the Blanket Mine are generally very competent and support such as rock bolts are only installed on rare occasions where weak rock conditions are encountered. There are zones with unstable sidewalls such as the Quartz Reef and Feudal at Blanket, but this is addressed by the application of a shrinkage methodology. The types of stopes do not contribute a relatively high tonnage and is insignificant to the overall dilution incurred.

Crosscuts from a series of shafts to access the underground workings are cut every 30 m wherefrom diamond drilling is used to locate ore shoots for development planning. Most of the development is within mineralised zones except when developing transfer levels between ore bodies. Such development is handled as waste.

A recently completed No 4 shaft at Blanket will be linked to Lima shaft via a 750 m haulage on 22 Level. A 230 m ventilation raise will also be bored for improved ventilation in this area to facilitate double-shift blasting. It will be equipped with a suitable single winder engine and a double-deck conveyance for personnel transportation between the 14 Level and 22 Level.

Stoping preparations in narrow ore bodies (<3.0 m) begin by mining box raises sited at 10 m intervals from the footwall of the ore body. In wider ore bodies (>3.0 m), air loader operated draw points are mined instead of boxes to facilitate longhole open stoping which generates large rocks. Three types of mining methods are used at the Blanket Mine:

1.      Underhand stoping in the narrow ore bodies.
 
2.      Shrinkage stoping where blocky sidewalls are evident.
 
3.      Longhole stoping in the wider ore bodies.
 

The underhand bench stoping is usually applied in the narrow orebodies and allows for control of the stoping width (+/-2 m) and dilution. Figure 23-1 presents a schematic section of a typical underhand stoping method.

 

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Figure 23-1

Typical Underhand Stoping Method (Not to scale)

Shrinkage stoping is practiced when sidewalls, if left unsupported tend to be unstable. A shrinkage pile offers passive support and prevents slabs of waste rock from diluting the ore. The minimum mining width is 1.2 m. Figure 23-2 presents a cross section of a typical shrinkage stoping method.

Figure 23-2
Typical Shrinkage Stoping Method (Not to scale)

 

 

 
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Longhole stoping is the mining method most used at the Blanket Mine. Figure 23-3 is a schematic section of a typical longhole stoping layout in wider orebodies.

Figure 23-3
Typical Longhole Stoping Method (Not to scale)

  Detailed descriptions in the information provided to the writer of the various methods has been reviewed and found to be consistent with common practice on these types of mines. It is understood that reduced unit costs and increase safety is expected with a phasing out of the underhand bench stoping method in favour of shrinkage and long hole stoping methods.
 
23.1.2      Mining Infrastructure and Equipment
 
  Blanket Mine requires certain infrastructure and various equipment to produce at the required 40 koz gold per annum level. This includes hoisting, compressors, drilling, tramming, ventilation and power.
 
  Eleven hoists are installed at the mine. Three have been ore handling hoists, namely Main Incline Shaft, Sub-vertical Shaft, and 6 Winze Shaft. All ore is transported to the Blanket area for hoisting to surface. This is generally done on three main levels (i.e. 7, 14, and 22). Until completion of the No. 4 Shaft Expansion Project, there was a necessity to double and triple handle mined ore and waste from below the 14 Level (510m) mid-shaft loading system via the No 5 and No 6 sub-shafts (winzes). This limited ore production to 500 tpd or less. Ore from below 14 Level is still double- handled but an ore pass (i.e.115 m) which is currently being raised-bored from 18 Level (630 m) to 22 Level will resolve this problem. A sustained 1.1 ktpd will be possible once this ore pass and its 18 Level tipping station are complete.

 

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  Underground drilling and lashing is facilitated by jackhammers, drifters and loaders and 10 400 cfm of compressed air capacity is installed on the mine:
 
  §      Two 4 400 cfm ER8 Atlas Copco Compressors at Blanket
 
  §      Two 2 000 cfm GA160 Atlas Copco Rotary Screw Compressor at Blanket
 
  §      One 1 000 cfm GA160 Atlas Copco Rotary Screw Compressor at Lima
 
  §      Two 3 000 cfm GA250 Atlas Copco Rotary Screw Compressor at Lima
 
   The underground drilling equipment comprises seventy Seco 23, Seco 25, Seco 215 jackhammers and Seco 36 (Konkola) drifters. The jackhammers are mainly used for development and the drifters for production (i.e. long hole drilling).
 
   The tramming is by LM56 / 57 air loaders, grandby cars, cocopans and battery operated locomotives.
 
   A less congested 14 Level will be equipped with personnel carriages for faster access to improve efficiencies from the mining employees
 
   Ventilation downcasts via the Main shaft, Jethro surface, 5 Winze and N° 4 shaft with Lima, Sheet, Jethro Winze and other old shafts up casting. Varoius axial flow fans have been installed on the mine to enhance the ventilating volume.
 

 

Page: 93


  The Zimbabwe Electricity Supply Authority (ZESA) supplies power to the Blanket Mine from its main substation in Gwanda via 33kV and 11kV overhead lines.Blanket is installing additional diesel generators with suitable switchgear, transformers, and controls to ensure that the entire surface and underground operations will be able to continue to fully operate irrespective of ZESA power outages.
 
23.1.3      Planning
 
  A      mine life of 11 years was last forecast in 2006. However, mineral resource estimates
 
  in the inferred category are generally conservative with ongoing exploration usually adding to existing ore shoots. The mine is reportedly worked out above 18 level. Long crosscuts on the 22 Level haulage will provide drilling platforms to explore for deeper ore bodies.
 
  The latest base case forecast predicts constant revenue over a period of four years starting in 2012, with a two year build up starting in 2010. Yet there is an increase in operating expenses over the period (i.e labour, consumables, diesel, maintenance and power). This reduces operating profit margins from 2011 to 2015.
 
  In contrast the forecast based on expansions and indigenisation reflects increasing revenue over a period of six years, 2010 to 2016. The operating expenses increased over the same period, and while the expenses for consumables and diesel increased, other expenses like labour, power and administrative costs did not increase which seems in contrast to what one would expect.
 
  A      discrepancy between the total recovered gold in kilograms and the total recovered gold in ounces, was noted.
 
 
 
23.1.4      Modifying Factors
 
  Measured and Indicated Mineral Resources are converted to Proven and Probable Mineral Reserves, respectively, by applying appropriate modifying factors including dilution and mine call factors based on ore recovery from the mine. These factors are based on metal reconciliation between the predicted and actual gold recovered.
 
  Run of mine ore includes internal waste and dilution from the sides of the respective orebodies. The actual amount of dilution is determined from historical records and while an average figure of 7.5% is reportedly representative for the whole mine, the actual dilution varies as a percentage from one ore shoot to another. Sound Mining believes that 7.5% may be optimistic given dilution levels witnessed at similar operations.
 
  While orebody specific cut-off grades are applied to determine the areas to be included in planning, an average specific gravity figure of 2.86 is applied when in fact the specific gravity will vary between the different ores.
 

 

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23.1.5      General comments
 
  Blanket mine plans to:
 
  §      Achieve a 40 koz production level,
 
  §      Accelerate the 22 Level Haulage Development Project, and
 
  §      The exploration of the up and down dip extension of the known ore bodies.
 
   MSA has reviewed the expansion logic and after consideration using insight from similar operations and from the MSA database, believes the expectations to be fair and reasonable. While the production and development schedules have not been examined in detail the mine can expect continued risk to it’s forecasts from:
 
  §      Power interruptions.
 
  §      Increased labour costs.
 
  §      Cashflow shortages.
 
  §      Zimbabwe politics.
 
  §      A shortage of skills.
 
   In the opinion of MSA, the limited amount of operational data available for review is insufficient to justify reconciliation against financial projections. The achievability of the planning at Blanket Mine is neither warranted nor guaranteed by MSA.
 
23.2      Recoverability
 
  Recoveries over the past three years have been within the historical range of between 88% and 92% of gold delivered to the plant as shown in Table 23-2 below. Also, historically, an average of approximately 45% to 50% of the gold is recovered as free gold, the remaining portion being contained within the sulphide minerals pyrite, pyrrhotite and arsenopyrite. The quartz ore bodies are characterised by even higher proportions of free gold while the disseminated sulphide replacement ores have only small amounts of free gold. Assuming that the gold recovery from the quartz–rich ores is higher than from the sulphide ores, it follows that lower recoveries (between 85% and 90%) are likely for the sulphide ores.
 

Table 23-2
Gold recoveries since 2008
Production Results    2008*    2009**    2010    2011 Jan    2011 Feb 
            103    153         
Ore Milled    tonnes    81 688            17 125    20 361 
            444    500         
Head Grade    g/t    3.33    3.75    3.9    4.1    3.97 
Recovery    %    87.89    90.96    92.00    92.49    91.76 
Gold    ounces    7 687    11 295    17 707    2 086    2 386 
Produced                         

*      Production suspended from October 2008 until April 2009
 
**      Production recommenced for 9 months from April to December 2009
 

23.3 Markets

Gold prices rose for most of 2010 and early 2011 and stands at over USD 1 500 per oz in June 2011. Jewellery consumption recovered in 2010 to grow by an estimated 7.8%, which, together with strong investor demand and a tight physical market, fuelled the rise in prices. Investor demand, both physical and speculative, is expected to continue to support record gold prices in 2011 as investors seek a "safe haven" in an environment of low interest rates and high inflationary pressures.

 

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Forecasts beyond the middle of 2011 mostly suggest that the gold price will peak in 2011 and fall from 2012 to at least 2015. According to the Economist Intelligence Unit (EIU) the forecast tightening of monetary policy in 2012 will restrain economic growth and investment in gold, as will the forecast strengthening of the US dollar in 2011-12, which has historically moved inversely to the price of gold. As a result of these conflicting trends, the EIU forecasts that the gold price will peak during 2011, before the price starts to weaken markedly from the final quarter of the year. Given the dramatic increase in the level of investment in gold over the past two-and-a-half years, there is a risk of a sharp fall in gold prices in 2013, should investors judge that prices have peaked and that better returns are available elsewhere.

Figure 23-4 shows the rise in the gold price since 2005, and a collection of forecasts of the future fold price to 2015.

Figure 23-4

Chart of the gold price between 2005 and 2011, and forecast to 2015

 

Page: 96


23.4      Contracts
 
  A standard refining and sales agreement is currently in effect between Blanket Gold Mine and Rand Refinery Ltd (RRL), a South Africa registered company. Gold Doré is transferred to RRL by a security company. RRL is contracted to refine the gold Doré and to sell on the instruction of Blanket Mine.
 
  In MSA’s view, contracts in place on the mine are standard contracts which are normal for a mine of this kind and present no additional risk to the project.
 
23.5      Environmental Considerations
 
  Information regarding environmental consideration is taken largely from AGS (2006) and from Fraser Alexander Zimbabwe (Pty) Ltd (March 2010) and Blanket Mine (November 2009).
 
  In 1995 a full Environmental Impact Assessment was completed by SRK to identify the major detrimental aspects of the mining operation and recommend remedial measures. Apart from the potential to pollute groundwater from the tailings dam, no significant detrimental environmental impacts were identified by this study.
 
  Kinross Gold Corporation, the owners of the mine up until June, 2006, issued an Environmental Policy and Framework document in 2001 based on ISO 14001, which serves as the guideline for all environmental issues at Blanket Mine.
 
  The Government of Zimbabwe has enacted regulations covering water and effluent disposal, through the all-encompassing Environmental and Natural Resources Act. Under the Water Act and the Waste Disposal Regulations a mine is required to obtain permits for all effluent disposal and two permits have been issued to the Blanket Mine by the Zimbabwe National Water Authority covering the sewage effluent and mill tailings disposals.
 

 

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The Blanket Mine tailings operation is a gold tailings operation, comprising two dams/compartments abutting and adjacent to one another. Dam A and Dam B are operated as a paddock (“day wall”) operation. Decanting of the two dams occurs through separate penstocks, with Dam A having an elevated penstock installed in 2005/2006. Dam A is the initial tailings dam with Dam B having been constructed subsequently and abutting, adjacently to Dam A. Dam A is in the order of 3 m lower in elevation to Dam B (height difference is an estimate as no current updated survey information is available). The tailings dams are operated by Frazer Alexander Zimbabwe.

In February 2002 SRK conducted a Technical Risk Assessment of the Tailings Dam Complex that included all environmental and safety aspects of the tailings deposition and in particular a stability analysis.

In addition there are a number of water boreholes down-slope of the dams that are routinely sampled and the water analyzed for a number of metals, pH, total dissolved solids and conductivity. The analyses indicate that all holes are in the red category as defined by the Waste Disposal Regulations. The reason for this is that the dam was not lined prior to deposition and that seepage has taken place through the floor of the dam. The rate of seepage will decline as the slime level rises. A mitigating factor is the fact that the seepage waters are not acidic. As a result, a number of de-watering holes are planned to lower this pollution to acceptable levels.

Similar monitoring of the sewage disposal area shows that all holes are in the acceptable green category.

In October, 2009, Epoch Resources (Pty) Ltd (Epoch) were appointed by Fraser Alexander Tailings (Pty) Ltd to undertake an audit review of the tailings operation at Blanket Mine. The audit review identified no significant operational or design risks associated with the dam. However, two key findings of the audit were that:

§      A number of the findings and recommendations identified in the 2007 audit report have not been addressed; and
 
§      The level of reporting and documentation of the operational data pertaining to the tailings dam has declined significantly since the last audit.
 

An updated survey of the tailings dam facility was not available at the time of the audit as was the case during the 2007 audit. In addition, no monthly depositional tonnages were made available and the rate of rise for the tailings dam could not be determined. However at a production rate of1 000 tpd the rate of rise (RoR) is 0.54 m per year based on the final design area of 28 ha, which is well below the legal maximum of 2 m per year.

Epoch recommended that

 

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  §      An updated comprehensive survey be carried out of the entire tailings dam facility, including the dam basins, position of drains, penstock outlets, piezometers etc.
 
  §      Appropriate monitoring data sheets and report templates be implemented for the collection, documentation and report of the various monitoring aspects pertaining to the tailings dam.
 
  §      A minimum vertical freeboard of 1.5m for Dam A and B be maintained at all times.
 
  §      Piezometers be checked, by carrying out Upset Tests to confirm that they are fully operational;
 
  §      Drains be rodded and flushed to confirm that they are not blocked and fully operational.
 
  §      A comprehensive slope .stability assessment be undertaken.
 
  §      The height discrepancy between Dam A and B be gradually phased out.
 
23.5.1      Closure Plan
 
  In March 2001 the Blanket Mine contracted Knight Piesold to estimate the costs of decommissioning and closure of the mine. This study included all aspects of the mining operation including open workings, waste dumps and infrastructure. An updated decommissioning and reclamation cost estimate was undertaken by Blanket Mine and reported in November 2009.
 
  There are a number of Government of Zimbabwe regulations and guidelines including the Mining General Regulations, the Environmental and Natural Resources Act, the Water Act and the Waste Disposal Regulations which cover a mine’s closure obligations. These are all addressed and costed in the Knight Piesold report and in the updated report by Blanket Mine dated November 2009. The cost of closure was estimated by Blanket Mine in 2009 to be US$1.8 million. The mine is not required to post a bond for this amount, but has reached an agreement with government the break-up value of the plant and mine infrastructure be pledged as a guarantee for the closure cost.
 
23.6      Zimbabwe Taxes
 
  The prevailing taxation regime for mining companies in Zimbabwe includes the following provisions:
 
  §      Corporate income tax at 25%
 
  §      Exploration, development and capital costs can be expensed against profit in the year incurred or carried forward to be expensed against the first year of production
 
  §      Royalty at 4.5% of turnover with effect from 1 January 2011
 

 

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§      Exemptions on customs duty and import taxes on capital items during exploration and development phases
 
§      15% withholding tax on dividend payments to non-Zimbabweans and on services provided by foreign suppliers
 

23.7 Capital and Operating Cost Estimates (Real Terms)

The capital cost estimates are shown in Table 23-3 over the LOM. It is assumed that the estimated closure cost of US$1.9 million1 will be provided for by the salvage value of the mine once it closes.

Table 23-3
Capital Cost Estimates (Real) 

Cost Area    US$ ‘000S 
 Base Capex    4 516 
 Sustaining Capex    26 399 
Total Capex    30 915 

The operating cost estimates are shown in Table 23-4 over the LOM

Table 23-4
Operating Cost Estimates (Real)
Cost Area    US$ ‘000s    US$        US$     
Labour    81 273    19.76    /t mined    176.33    /oz 
Consumables    157 221    38.02    /t mined    339.23    /oz 
Power    75 471    18.25    /t mined    162.84    /oz 
Other admin costs    15 557    3.76    /t mined    33.57    /oz 
TOTAL:    329 552    79.80    /t mined    711.98    /oz 

In addition to these costs, a transport, insurance, security fee and a refining charge of US$8.00/oz is also applied.

1 Decommissioning and Reclamation Cost Estimate, Blanket Mine, November 2009

23.8 Economic Analysis

Reserves as at 31 December 2010 are shown in Table 23-5 below.

 

 

 

 

 

 

 

 

 

 

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Table 23-5

Mineral Reserves as at 31 December 2010

BLANKET MINE (1983) (PRIVATE) (LIMITED)                         
 
MINERAL RESERVES AS AT 31.12.2010                         
 
        For Au-US$1100/ounce(Reserves)                 
        For Au-US$1100/ounce(Resources)                 
SUMMARY                                 
 
OREBODY        TONNES AVERAGE INSITU GRADE DILUTED EST MILL    AU    EST 
AND BLOCK            WIDTH    (SAMPLED) TONNES HEAD GRADE CONT    REC 
                g/t        g/t    kg    kg 
 
PROVED        968090    12.42    4.24    1031089    3.98       4107           3655 
PROBABLE        2369479    12.99    3.88    2513717    3.66       9191           8180 
PROBABLE PILLARS    556258    12.99    4.43    590094    4.18       2467           2195 
INDICATED        509960    6.23    3.79                 
INFERRED        2408243    6.12    5.27                 
TOTAL MINE        6812030    9.97    4.46    4134900    3.81    15765    14031 
 
OREBODY    % DISTRIBUTION OF AVAILABLE MINERAL RESERVES                 
1 OREBODY    0.96    9212    1.94    5.40    9903    5.02         
2 OREBODY    2.18    20882    2.83    4.38    22448    4.07         
BF    1.87    17974.42    1.54    3.43    19323    3.19         
QUARTZ    4.14    39689    2.35    5.16    42666    4.80         
2 LEADER    3.27    31514    3.65    3.68    33720    3.44         
4-OREBODY    2.56    24643    5.04    4.45    26368    4.15         
AR    17.33    173491    9.11    3.60    178696    3.49         
ARS    54.92    529205    17.73    4.51    566249    4.21         
JETHRO    0.64    6099    2.66    4.23    6556    3.94         
EROICA    7.94    75073    6.52    3.61    81830    3.31         
LIMA    2.53    24251    1.96    3.91    26070    3.63         
SHEET    1.67    16057    4.60    4.52    17261    4.20         
    100.00    968090    12.42    4.24    1031089    3.98    4107    3655 
 
 
LOCATION OF AVAILABLE RESERVES                         
    %                             
Above 9 Level    8.75    84683    2.77    4.10    90857    3.82         
Above 14 Level    17.34    167824    9.84    3.72    177527    3.52         
Above 18 Level    31.04    300457    15.98    4.09    322703    3.81         
Above 22 Level    42.88    415126    12.86    4.59    440002    4.33         
GRAND TOTAL    100.00    968090    12.42    4.24    1031089    3.98    4107    3655 
 
 
GRADING OF AVAILABLE RESERVES ON GOLD CONTENT                     
    %                             
2.10-2.99g/t    1.44    13951    4.14    2.68    14698    2.54         
3.00-3.99g/t    50.32    487128    10.21    3.59    516263    3.39         
4.00-4.99g/t    29.93    289725    15.26    4.61    310219    4.30         
5.00-5.99g/t    11.71    113330    13.02    5.13    121431    4.79         
6.00-6.99g/t    6.49    62838    17.44    6.30    67277    5.88         
7.00g/t-over    0.12    1118    1.52    7.87    1202    7.32         
TOTAL    100.00    968090    12.42    4.24    1031089    3.98    4107    3655 

 

The diluted tonnage of 4.135mt for the proved, probable and probable pillars has been used in the development of a financial model for Blanket.

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Following the successful commissioning of the No. 4 Shaft Expansion Project in September 2010, the underground workings were progressively increased to a production rate of 1 000 tonnes of ore per day using both long-hole open stoping and underhand stoping methods. The entire underground operations of the Blanket section of the mine, including the surface compressors and the No 4 Shaft Winder can at this stage be operated by the 2 500 kVA standby diesel powered generating set which was installed and commissioned in June 2010. This generating set ensures that all underground operations and hoisting can continue notwithstanding any interruptions to the electrical power supply from the grid.

 

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A further three identical generating sets have been installed which will provide Blanket with 10 MVA of standby generating capacity and enable it to run all its operations. The price of electricity supplied under the terms of a new supply agreement with the Zimbabwean government is more expensive than under the previous agreement, but it is still considerably less expensive than the cost of electricity generated by the mine’s standby generators. The standby generating system will allow Blanket to maintain full operations during any interruptions to the normal electricity supply arising from load-shedding, line faults and other supply problems.

For the purposes of the valuation model, it has been assumed that the gensets are not used.

The financial evaluation has been performed using the escalate/de-escalate methodology, whereby all cash inflows and outflows are escalated by an appropriate index, then subsequently de-escalated at the inflation rate to determine NPV and IRR. This allows for adjustments to the unescalated model to reflect the appropriate timing and quantum of tax which must be applied against escalated profits. The financial valuation has been undertaken on an after-tax, leveraged, real rate of return basis.

The base date for escalation, NPV, and IRR calculations for the financial model is 1 July 2011. All production, costs, and revenues are based on calendar fiscal years and all cash inflows and outflows assumed to occur in the middle of each year, i.e. June of each year.

The project is economically viable and provides a real net present value (NPV) at 10% of US$123.6 million in 1 July 2011 money terms. There is no IRR as all cashflow are positive.

The project is most sensitive to the gold price, less sensitive to operating costs and capital expenditure.

Table 23-6 is a summary of selected financial inputs and the corresponding results. All costs are quoted in real July 2011 United States Dollars.

 

Page: 103


Table 23-6 

        

Financial Inputs and Results 

        
 
 
All monetary values in Real terms    Total Production     
    2011 to 2023     
 
Total Underground Production    t    4,134,900 
Grade    g/t    3.81 
ROM tonnes per day    tpd    1,000 
Mill Recovery    %    91.5% 
LOM    years    12 
 
Total Recovered - Au    kgs    14,415 
Total Recovered - Au    ozs    463,459 
 
Gold Price (long term, real)    US$/oz    1,500 
 
Gross Revenue    US$    736,909,545 
Royalty    US$    33,160,930 
Refining & Transport    US$    3,707,673 
Net Revenue    US$    700,040,942 
 
Working Costs    US$    314,414,830 
Working Costs    US$/t    76 
Working Costs    US$/oz    678 
 
Services and Admin US$    US$    15,557,077 
 
Total Operating Costs    US$    329,971,908 
Total Operating Costs    US$/t    80 
Total Operating Costs US$    US$/oz    712 
 
Operating Profit/Loss    US$    281,106,173 
Capital Expenditures    US$    30,914,807 
Earnings Subject to Tax    US$    277,240,111 
Taxes @ 25%    US$    66,596,666 
Earnings After Tax    US$    210,643,445 
 
NPV @ 10%    US$    123,573,559 
NPV @ 15%    US$    99,881,791 
NPV @ 20%    US$    82,964,210 

25.4.1 Profitability of the Project

In terms of the underlying economic assumptions provided to MSA the results of the valuation of the project are as shown in Table 23-7.

Table 23-7     
NPV’s of Project     
 
Disc Rate    US$ '000s 
0.0%    209,641 
5.0%    157,917 
8.0%    135,739 
10.0%    123,574 
12.0%    113,082 
15.0%    99,882 
20.0%    82,964 

 

Page: 104



25.4.2 Sensitivity

The sensitivity chart, Figure 23-5 below, shows the NPV variation due to changes in revenue, capital and operating costs, holding all other inputs constant. The project is most sensitive to the gold price and fairly sensitive to opex.

Figure 23-5
Figure description
NPV SensitivityAnalysis

% Change in Variable

Figure 23-6 shows the real monthly project cash flows used in the evaluation.

Figure 23-6
Monthly Cash Flow (Real)

 

Page: 105


Cash Flow (real) Geared

The negative cash flows that appear regularly are the result of quarterly tax payments.

Table 23-8 is a matrix of gold price variation vs. discount rate.

Table 23-8
Sensitivity of NPV’s to Changes in Gold Price

 

Page: 106


23.9 Mine Life

The mine has an estimated operating life of about 12 years, based on the current Mineral Reserve estimate.

The property has robust orebodies whose down dip extensions below the current deepest level on the mine are yet to be fully explored. The adjacent property, the Vubachikwe Gold Mine has payshoots extending below 1 km depth. Potential to find new orebodies and increase the resource base exists particularly from platforms afforded by haulage development.

 

 

 

 

 

 
Page: 107


APPENDIX 1:

Glossary of Technical Terms

 

 

 

 

 

 

 

 

 

 

 

 

 


  Glossary of Technical Terms

Ag

airborne magnetic surveys

Chemical symbol for silver

Surveys flown by helicopter or fixed wing aircraft to measure the magnetic susceptibility of rocks at or near the earth’s surface.

alteration

Changes in the mineralogical composition of a rock as a result of physical or chemical processes such as weathering or penetration by hydrothermal fluids

amphibolite

A dark-coloured metamorphic rock, comprising mainly hornblende with feldspar.

andesite

An extrusive igneous, volcanic rock, of intermediate composition, with aphanitic to porphyritic texture. The mineral assemblage is typically dominated by plagioclase plus pyroxene and/or hornblende.

ankerite

A calcium iron magnesium carbonate mineral (Ca,Fe, Mg)( CO3 )2 .

AGS

Archaean

Applied Geology Services cc

The oldest rocks of the Precambrian era, older than about 2,500 million years.

arsenopyrite

A silvery-white mineral commonly occurring in lead and silver veins (FeAsS).

Au

basalt

Chemical symbol for gold

A dark, fine-grained volcanic rock of low silica (<55%) and high iron and magnesium composition, composed primarily of plagioclase and pyroxene.

basement

The igneous and metamorphic crust of the earth, underlying sedimentary deposits.

breccia

A rock composed of angular rock fragments cemented within a fine-grained matrix

brecciated carbonate

Condition applied to an intensely fractured body of rock. A rock, usually of sedimentary origin, composed primarily of calcium, magnesium or iron and CO3 . Essential component of limestones and marbles.

Carbon in leach (CIL)

A method of recovering gold from mined ore in which the crushed ore is fed into tanks containing cyanide solution. The gold is dissolved in the cyanide, after which the solution is transferred to a series of tanks where carbon is added. The gold is adsorbed onto the surface of the carbon which is then removed by screening and introduced into a heated sodium hydrioxide-cyanide-water solution where the gold is dissolved. This solution is passed through electrowinning cells where the gold plates onto stainless steel cathodes. It is then washed from the cathodes with high-pressure sprays, dried and melted and poured into moulds for gold ingots.

CIM

Canadian Institute of Mining, Metallurgy and Petroleum.
 
 
 


craton

*Large, and usually ancient, stable mass of the earth’s crust comprised of various crustal blocks amalgamated by tectonic processes. A cratonic nucleus is an older, core region embedded within a larger craton.

diamond drilling

Method of obtaining cylindrical core of rock by drilling with a diamond set or diamond impregnated bit.

dip

The steepest angle of descent of a tilted bed, between 0° and 90°, perpendicular to the strike of the bed.

disseminated

dyke

Widely dispersed

A tabular body of intrusive igneous rock, crosscutting the host strata at an oblique angle.

facies (metamorphic)

A group of mineral compositions in metamorphic rocks which are typical of a particular temperature and pressure.

fault

A fracture or fracture zone, along which displacement of opposing sides has occurred.

felsic

Light coloured rocks containing an abundance of feldspars and quartz.

fire assay

Lead collection fire assay using carefully selected fluxes specially formulated for the mineralogy of each sample type. Samples submitted for ppb detection of gold are fused in a dedicated low level furnace, the resultant prill digested and gold content determined typically by AAS.

fold

A planar sequence of rocks or a feature bent about an axis.

gangue

Uneconomic material that surrounds, or is closely mixed with ore

gneiss granitoid

A coarse grained, banded, high grade metamorphic rock. A generic term for coarse grained felsic igneous rocks, including granite.

greenschist

A metamorphic rock comprising green minerals such as chlorite, epidote and actinolite in parallel orientation

greenstone belt

An elongate zone of metamorphosed mafic or ultramafic rocks and sedimentary sequences which occur within Archaean and Proterozoic cratons. The rock is a green colour due to the green hues of several of the metamorphic minerals in these rocks.

g/t

hornblende

Grams per metric tonne.

A suite of minerals containing iron, magnesium, calcium, aluminium and silica in varying proportions.

imaging

Computer processing of data to enhance particular features.


Indicated Resource

An ‘Indicated Mineral Resource’ is that part of a Mineral Resource for which quantity, grade or quality, densities, shape and physical characteristics, can be estimated with a level of confidence sufficient to allow the appropriate application of technical and economic parameters, to support mine planning and evaluation of the economic viability of the deposit. The estimate is based on detailed and reliable exploration and testing information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes that are spaced closely enough for geological and grade continuity to be reasonably assumed.

Inferred Resource

An ‘Inferred Mineral Resource’ is that part of a Mineral Resource for which quantity and grade or quality can be estimated on the basis of geological evidence and limited sampling and reasonably assumed, but not verified, geological and grade continuity. The estimate is based on limited information and sampling gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes.

intrusive

An igneous rock that formed from magma that cooled and solidified within the Earth's crust.

lineament lithology Ma

mafic

A significant linear feature of the earth’s crust. Rock type Million years.

Descriptive of rocks composed dominantly of magnesium and iron rock-forming silicates.

magnetic survey

Geophysical survey measuring the magnetic field intensity of rocks at various stations

Measured Resource

A ‘Measured Mineral Resource’ is that part of a Mineral Resource for which quantity, grade or quality, densities, shape, and physical characteristics are so well established that they can be estimated with confidence sufficient to allow the appropriate application of technical and economic parameters, to support production planning and evaluation of the economic viability of the deposit. The estimate is based on detailed and reliable exploration, sampling and testing information gathered through appropriate techniques from locations such as outcrops, trenches, pits, workings and drill holes that are spaced closely enough to confirm both geological and grade continuity.

mesothermal

Formed at depth at a moderately-high temperature in the range 200-300°C.

metamorphism

Alteration of rock and changes in mineral composition, most generally due to increase in pressure and/or temperature.
 
 
 


metabasalt

A basalt that shows evidence of having been subjected to metamorphism.

metasediment

A sedimentary rock that shows evidence of having been subjected to metamorphism

metavolcanic

A volcanic rock that shows evidence of having been subjected to metamorphism.

Mineral Resource

A Mineral Resource is a concentration or occurrence of diamonds, natural solid inorganic material, or natural solid fossilized organic material including base and precious metals, coal, and industrial minerals in or on the Earth’s crust in such form and quantity and of such a grade or quality that it has reasonable prospects for economic extraction. The location, quantity, grade, geological characteristics and continuity of a Mineral Resource are known, estimated or interpreted from specific geological evidence and knowledge.

mineralisation

The process by which minerals are introduced into a rock resulting in the formation a mineral deposit

mobile belt/zone

An elongate belt in the earth’s crust, usually occurring at the collision zone between two crustal blocks, within which major deformation, igneous activity and metamorphism has occurred.

ore shoot

A colloquial term in mining and geology used to describe a higher grade zone of mineral or metal bearing rock that can be profitable to extract.

orogenic

Relating to the formation of structures such as folds and thrusts during a period of mountain-building.

Precambrian

Pertaining to all rocks formed before Cambrian time (older than 545 million years).

Proterozoic

An era of geological time spanning the period from 2,500 to 545 million years before present.

pyrite

A bronze- or yellow-coloured iron sulphide mineral (FeS2) which commonly forms cubes.

pyrrhotiite

An bronze-coloured iron sulphide mineral with variable iron content ((Fe1-x)S) which is slightly magnetic.

QAQC

Qualified Person (QP)

Quality assurance and quality control

An individual who is an engineer or geoscientist with at least five years of experience in mineral exploration, mine development or operation or mineral project assessment, or any combination of these; has experience relevant to the subject matter of the mineral project and the technical report; and is a member or licensee in good standing of a professional association.

RC drilling

(Reverse Circulation) A percussion drilling method in which the fragmented sample is brought to the surface inside the drill rods, thereby reducing contamination.
 
 
 
   


reef

A colloquial mining term referring to gold mineralization typically associated with quartz veining.

replacement

Referring to the replacement of one assemblage of mineral by another group as a result of chemical processes which dissolve and alter the rock.

schist

A crystalline metamorphic rock having a foliated or parallel structure due to the recrystallisation of the constituent minerals.

stockwork

A three-dimensional network of closely-spaced planar to irregular veins and veinlets, commonly forming a mineral deposit.

strike sulphide

Horizontal direction or trend of a geological structure. A mineral containing sulphur with a metal or semi-metal, e.g. pyrite.

tectonic

Pertaining to the forces involved in, or the resulting structures of, movement in the earth’s crust.

ultramafic

Igneous rocks consisting essentially of ferromagnesian minerals with trace quartz and feldspar.

 

 

 


APPENDIX 2:

Certificate of Qualified Person

 

 

 

 

 

 

 

 

 

 

 

 



APPENDIX 3:

Blanket Mine Claims
(Blanket Mine (1983) (Pvt) Ltd)

 

 

 

 

 

 

 

 

 

 

 

 

 


        BLANKET MINE PRODUCING CLAIMS SCHEDULE AS AT 13 MAY 2011         
 
                    No. x        Date         
Block No.    Name    Area    Date Applied    Claims    5 ha    Type    Renewed    Expiry Date    Certificate No. 
35928    OQUEIL    Gda    28-Feb-11    1    1    Au    02-Mar-11    29-Jan-12    079313 CA 
35929    OQUEIL 1    Gda    28-Feb-11    2.5    1    Au    02-Mar-11    29-Jan-12    079313 CA 
35930    OQUEIL 2    Gda    28-Feb-11    5    1    Au    02-Mar-11    29-Jan-12    079313 CA 
35931    OQUEIL 3    Gda    28-Feb-11    3    1    Au    02-Mar-11    29-Jan-12    079313 CA 
35932    OQUEIL 4    Gda    28-Feb-11    9    2    Au    02-Mar-11    29-Jan-12    079313 CA 
35933    OQUEIL 5    Gda    28-Feb-11    10    2    Au    02-Mar-11    29-Jan-12    079313 CA 
35934    OQUEIL 6    Gda    28-Feb-11    10    2    Au    02-Mar-11    29-Jan-12    079313 CA 
35935    OQUEIL 7    Gda    28-Feb-11    10    2    Au    02-Mar-11    29-Jan-12    079313 CA 
35936    OQUEIL 8    Gda    28-Feb-11    10    2    Au    02-Mar-11    29-Jan-12    079313 CA 
35937    OQUEIL 9    Gda    28-Feb-11    10    2    Au    02-Mar-11    29-Jan-12    079313 CA 
35938    OQUEIL 10    Gda    28-Feb-11    10    2    Au    02-Mar-11    29-Jan-12    079313 CA 
35939    OQUEIL 11    Gda    28-Feb-11    6    2    Au    02-Mar-11    29-Jan-12    079313 CA 
35940    OQUEIL 12    Gda    28-Feb-11    10    2    Au    02-Mar-11    29-Jan-12    079313 CA 
35941    OQUEIL 13    Gda    28-Feb-11    10    2    Au    02-Mar-11    29-Jan-12    079313 CA 
35942    OQUEIL 14    Gda    28-Feb-11    9    2    Au    02-Mar-11    29-Jan-12    079313 CA 
35943    OQUEIL 15    Gda    28-Feb-11    3    1    Au    02-Mar-11    29-Jan-12    079313 CA 
35944    OQUEIL 16    Gda    28-Feb-11    9    2    Au    02-Mar-11    29-Jan-12    079313 CA 
35945    OQUEIL 17    Gda    28-Feb-11    10    2    Au    02-Mar-11    29-Jan-12    079313 CA 
35946    OQUEIL 18    Gda    28-Feb-11    10    2    Au    02-Mar-11    29-Jan-12    079314 CA 
35947    OQUEIL 19    Gda    28-Feb-11    2.5    1    Au    02-Mar-11    29-Jan-12    079314 CA 
35948    OQUEIL 20    Gda    28-Feb-11    10    2    Au    02-Mar-11    29-Jan-12    079314 CA 
35949    OQUEIL 21    Gda    28-Feb-11    10    2    Au    02-Mar-11    29-Jan-12    079314 CA 
35950    OQUEIL 22    Gda    28-Feb-11    8    2    Au    02-Mar-11    29-Jan-12    079314 CA 
35951    OQUEIL 23    Gda    28-Feb-11    3    1    Au    02-Mar-11    29-Jan-12    079314 CA 
35952    OQUEIL 24    Gda    28-Feb-11    8    2    Au    02-Mar-11    29-Jan-12    079314 CA 
 


35953    OQUEIL 25    Gda    28-Feb-11    10    2    Au    02-Mar-11    29-Jan-12    079314 CA 
35954    OQUEIL 26    Gda    28-Feb-11    7    2    Au    02-Mar-11    29-Jan-12    079314 CA 
35955    OQUEIL 27    Gda    28-Feb-11    4    1    Au    02-Mar-11    29-Jan-12    079314 CA 
35956    OQUEIL 28    Gda    28-Feb-11    10    2    Au    02-Mar-11    29-Jan-12    079314 CA 
35957    OQUEIL 29    Gda    28-Feb-11    8    2    Au    02-Mar-11    29-Jan-12    079314 CA 
35958    OQUEIL 30    Gda    28-Feb-11    7    2    Au    02-Mar-11    29-Jan-12    079314 CA 
35959    OQUEIL 31    Gda    28-Feb-11    10    2    Au    02-Mar-11    29-Jan-12    079314 CA 
35960    OQUEIL 32    Gda    28-Feb-11    7    2    Au    02-Mar-11    29-Jan-12    079314 CA 
35961    OQUEIL 33    Gda    28-Feb-11    6    2    Au    02-Mar-11    29-Jan-12    079314 CA 
35962    OQUEIL 34    Gda    28-Feb-11    8    2    Au    02-Mar-11    29-Jan-12    079314 CA 
35963    OQUEIL 35    Gda    28-Feb-11    4    1    Au    02-Mar-11    29-Jan-12    079314 CA 
5576BM    Harvard    Gda    28-Feb-11    25    5    Tu    02-Mar-11    02-Feb-12    079300 CA 
GA547    Blanket J    Gda    28-Feb-11    2    1    Au    02-Mar-11    07-Mar-12    079304 CA 
573    Site Housing    Gda    28-Feb-11    23    23        02-Mar-11    17-Mar-12    081143 B 
31190    Feudal 3    Gda    28-Feb-11    6    2    Au    02-Mar-11    18-Mar-12    079304 CA 
GA2767B    Valentine 37    Gda    28-Feb-11    7.6    2    Au    02-Mar-11    21-Mar-12    079305 CA 
GA2768    Valentine 38    Gda    28-Feb-11    8    2    Au    02-Mar-11    21-Mar-12    079305 CA 
GA2769    Valentine 39    Gda    28-Feb-11    10    2    Au    02-Mar-11    21-Mar-12    079305 CA 
GA2770    Valentine 40    Gda    28-Feb-11    10    2    Au    02-Mar-11    21-Mar-12    079305 CA 
GA2771    Valentine 41    Gda    28-Feb-11    10    2    Au    02-Mar-11    21-Mar-12    079305 CA 
GA2772    Valentine 42    Gda    28-Feb-11    7    2    Au    02-Mar-11    21-Mar-12    079305 CA 
GA2773    Valentine 43    Gda    28-Feb-11    4    1    Au    02-Mar-11    21-Mar-12    079305 CA 
GA2774    Valentine 44    Gda    28-Feb-11    10    2    Au    02-Mar-11    21-Mar-12    079305 CA 
GA2775    Valentine 45    Gda    28-Feb-11    10    2    Au    02-Mar-11    21-Mar-12    079305 CA 
GA2776    Valentine 46    Gda    28-Feb-11    10    2    Au    02-Mar-11    21-Mar-12    079305 CA 
GA2777    Valentine 47    Gda    28-Feb-11    10    2    Au    02-Mar-11    21-Mar-12    079305 CA 
GA2778    Valentine 48    Gda    28-Feb-11    10    2    Au    02-Mar-11    21-Mar-12    079305 CA 
GA2779    Valentine 49    Gda    28-Feb-11    10    2    Au    02-Mar-11    21-Mar-12    079305 CA 
GA2780    Valentine 50    Gda    28-Feb-11    10    2    Au    02-Mar-11    21-Mar-12    079305 CA 
 


GA2781    Valentine 51    Gda    28-Feb-11    10    2 Au    02-Mar-11    21-Mar-12    079305 CA 
GA2782    Valentine 52    Gda    28-Feb-11    10    2 Au    02-Mar-11    21-Mar-12    079305 CA 
GA2783    Valentine 53    Gda    28-Feb-11    10    2 Au    02-Mar-11    21-Mar-12    079305 CA 
GA2784    Valentine 54    Gda    28-Feb-11    10    2 Au    02-Mar-11    21-Mar-12    079305 CA 
GA2785    Valentine 55    Gda    28-Feb-11    10    2 Au    02-Mar-11    21-Mar-12    079305 CA 
GA2786    Valentine 56    Gda    28-Feb-11    10    2 Au    02-Mar-11    21-Mar-12    079305 CA 
GA2787    Valentine 57    Gda    28-Feb-11    10    2 Au    02-Mar-11    21-Mar-12    079305 CA 
GA2788    Valentine 58    Gda    28-Feb-11    10    2 Au    02-Mar-11    21-Mar-12    079305 CA 
GA2789    Valentine 59    Gda    28-Feb-11    10    2 Au    02-Mar-11    21-Mar-12    079305 CA 
GA2790    Valentine 60    Gda    28-Feb-11    10    2 Au    02-Mar-11    21-Mar-12    079305 CA 
GA2791    Valentine 61    Gda    28-Feb-11    10    2 Au    02-Mar-11    21-Mar-12    079305 CA 
GA2792    Valentine 62    Gda    28-Feb-11    4    1 Au    02-Mar-11    21-Mar-12    079305 CA 
36066    Lima 17    Gda    28-Feb-11    2.7    1 Au    02-Mar-11    26-Mar-12    079312 CA 
36067    Lima 18    Gda    28-Feb-11    9.8    2 Au    02-Mar-11    26-Mar-12    079312 CA 
36068    Lima 19    Gda    28-Feb-11    9.7    2 Au    02-Mar-11    26-Mar-12    079312 CA 
36069    Lima 20    Gda    28-Feb-11    9.6    2 Au    02-Mar-11    26-Mar-12    079312 CA 
36070    Lima 21    Gda    28-Feb-11    9.5    2 Au    02-Mar-11    26-Mar-12    079312 CA 
36071    Lima 22    Gda    28-Feb-11    9.1    2 Au    02-Mar-11    26-Mar-12    079312 CA 
36072    Lima 23    Gda    28-Feb-11    8.3    2 Au    02-Mar-11    26-Mar-12    079312 CA 
36073    Lima 24    Gda    28-Feb-11    10    2 Au    02-Mar-11    26-Mar-12    079312 CA 
36079    Lima 30    Gda    28-Feb-11    10    2 Au    02-Mar-11    02-Mar-12    079311 CA 
36080    Lima 31    Gda    28-Feb-11    10    2 Au    02-Mar-11    02-Mar-12    079311 CA 
36081    Lima 32    Gda    28-Feb-11    4    1 Au    02-Mar-11    02-Mar-12    079311 CA 
36082    Lima 33    Gda    28-Feb-11    7    2 Au    02-Mar-11    02-Mar-12    079311 CA 
36083    Lima 34    Gda    28-Feb-11    10    2 Au    02-Mar-11    02-Mar-12    079311 CA 
36084    Lima 35    Gda    28-Feb-11    10    2 Au    02-Mar-11    02-Mar-12    079311 CA 
36085    Lima 36    Gda    28-Feb-11    10    2 Au    02-Mar-11    02-Mar-12    079311 CA 
36086    Lima 37    Gda    28-Feb-11    10    2 Au    02-Mar-11    02-Mar-12    079311 CA 
36087    Lima 38    Gda    28-Feb-11    10    2 Au    02-Mar-11    02-Mar-12    079311 CA 
 


36088    Lima 39    Gda    28-Feb-11    2.04    1    Au    02-Mar-11    02-Mar-12    079311 CA 
36089    Lima 40    Gda    28-Feb-11    3.25    1    Au    02-Mar-11    02-Mar-12    079311 CA 
36090    Lima 41    Gda    28-Feb-11    3.25    1    Au    02-Mar-11    02-Mar-12    079311 CA 
36097    Lima 48    Gda    28-Feb-11    3    1    Au    02-Mar-11    26-Mar-12    079310 CA 
36099    Lima 50    Gda    28-Feb-11    5.8    2    Au    02-Mar-11    26-Mar-12    079310 CA 
36100    Lima 51    Gda    28-Feb-11    3.04    1    Au    02-Mar-11    26-Mar-12    079310 CA 
36101    Lima 52    Gda    28-Feb-11    9.25    2    Au    02-Mar-11    26-Mar-12    079310 CA 
36102    Lima 53    Gda    28-Feb-11    8.3    2    Au    02-Mar-11    26-Mar-12    079310 CA 
36103    Lima 54    Gda    28-Feb-11    2.18    1    Au    02-Mar-11    26-Mar-12    079310 CA 
36104    Lima 55    Gda    28-Feb-11    7.36    2    Au    02-Mar-11    26-Mar-12    079310 CA 
36105    Lima 56    Gda    28-Feb-11    6.3    2    Au    02-Mar-11    26-Mar-12    079310 CA 
613    Site Slimes    Gda    28-Feb-11    28    28        02-Mar-11    27-Mar-12    081143 B 
36074    Lima 25    Gda    28-Feb-11    10    2    Au    02-Mar-11    02-Apr-12    079309 CA 
36075    Lima 26    Gda    28-Feb-11    10    2    Au    02-Mar-11    02-Apr-12    079309 CA 
36076    Lima 27    Gda    28-Feb-11    10    2    Au    02-Mar-11    02-Apr-12    079309 CA 
36077    Lima 28    Gda    28-Feb-11    10    2    Au    02-Mar-11    02-Apr-12    079309 CA 
36078    Lima 29    Gda    28-Feb-11    10    2    Au    02-Mar-11    02-Apr-12    079309 CA 
36091    Lima 42    Gda    28-Feb-11    9    2    Au    02-Mar-11    02-Apr-12    079309 CA 
36092    Lima 43    Gda    28-Feb-11    10    2    Au    02-Mar-11    02-Apr-12    079309 CA 
36093    Lima 44    Gda    28-Feb-11    10    2    Au    02-Mar-11    02-Apr-12    079309 CA 
39094    Lima 45    Gda    28-Feb-11    10    2    Au    02-Mar-11    02-Apr-12    079309 CA 
36095    Lima 46    Gda    28-Feb-11    10    2    Au    02-Mar-11    02-Apr-12    079309 CA 
36096    Lima 47    Gda    28-Feb-11    8.1    2    Au    02-Mar-11    02-Apr-12    079309 CA 
36098    Lima 49    Gda    28-Feb-11    7.95    2    Au    02-Mar-11    02-Apr-12    079309 CA 
36106    Lima 57    Gda    28-Feb-11    10    2    Au    02-Mar-11    02-Apr-12    079308 CA 
36107    Lima 58    Gda    28-Feb-11    10    2    Au    02-Mar-11    02-Apr-12    079308 CA 
36108    Lima 59    Gda    28-Feb-11    10    2    Au    02-Mar-11    02-Apr-12    079308 CA 
36109    Lima 60    Gda    28-Feb-11    10    2    Au    02-Mar-11    02-Apr-12    079308 CA 
36110    Lima 61    Gda    28-Feb-11    10    2    Au    02-Mar-11    02-Apr-12    079308 CA 
 


36111    Lima 62    Gda    28-Feb-11    10    2 Au    02-Mar-11    02-Apr-12    079308 CA 
36112    Lima 63    Gda    28-Feb-11    10    2 Au    02-Mar-11    02-Apr-12    079308 CA 
36113    Lima 64    Gda    28-Feb-11    10    2 Au    02-Mar-11    02-Apr-12    079308 CA 
36114    Lima 65    Gda    28-Feb-11    10    2 Au    02-Mar-11    02-Apr-12    079308 CA 
36115    Lima 66    Gda    28-Feb-11    10    2 Au    02-Mar-11    02-Apr-12    079308 CA 
36116    Lima 67    Gda    28-Feb-11    10    2 Au    02-Mar-11    02-Apr-12    079308 CA 
36117    Lima 68    Gda    28-Feb-11    10    2 Au    02-Mar-11    02-Apr-12    079308 CA 
35628    Sheet    Gda    28-Feb-11    10    2 Au    02-Mar-11    03-Apr-12    079307 CA 
35629    Sheet 1    Gda    28-Feb-11    10    2 Au    02-Mar-11    03-Apr-12    079307 CA 
35630    Sheet 2    Gda    28-Feb-11    10    2 Au    02-Mar-11    03-Apr-12    079307 CA 
35631    Sheet 3    Gda    28-Feb-11    10    2 Au    02-Mar-11    03-Apr-12    079307 CA 
35632    Sheet 4    Gda    28-Feb-11    10    2 Au    02-Mar-11    03-Apr-12    079307 CA 
35633    Sheet 5    Gda    28-Feb-11    10    2 Au    02-Mar-11    03-Apr-12    079307 CA 
35634    Sheet 6    Gda    28-Feb-11    10    2 Au    02-Mar-11    03-Apr-12    079307 CA 
35635    Sheet 7    Gda    28-Feb-11    10    2 Au    02-Mar-11    03-Apr-12    079307 CA 
35636    Sheet 8    Gda    28-Feb-11    10    2 Au    02-Mar-11    03-Apr-12    079307 CA 
35637    Sheet 9    Gda    28-Feb-11    10    2 Au    02-Mar-11    03-Apr-12    079307 CA 
35638    Sheet 10    Gda    28-Feb-11    10    2 Au    02-Mar-11    03-Apr-12    079307 CA 
35639    Sheet 11    Gda    28-Feb-11    5    1 Au    02-Mar-11    03-Apr-12    079307 CA 
31202    Blanket 9    Gda    28-Feb-11    7    2 Au    02-Mar-11    06-Apr-12    079307 CA 
GA281    Sabiwa D B    Gda    28-Feb-11    10    2 Au    02-Mar-11    11-Apr-12    079307 CA 
19918    Feudal 3    Gda    28-Feb-11    9    2 Au    02-Mar-11    10-May-12    079398 CA 
36160    Mbudzane Rock A    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079393 CA 
36161    Mbudzane Rock B    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079393 CA 
36162    Mbudzane Rock C    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079393 CA 
36163    Mbudzane Rock D    Gda    30-May-11    6.13    2 Au    01-Jun-11    21-May-12    079393 CA 
36164    Mbudzane Rock E    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079393 CA 
36165    Mbudzane Rock F    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079393 CA 
36166    Mbudzane Rock G    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079393 CA 
 


         36167    Mbudzane Rock H    Gda    30-May-11    5.83    2 Au    01-Jun-11    21-May-12    079393 CA 
         36168    Mbudzane Rock I    Gda    30-May-11    2.5    1 Au    01-Jun-11    21-May-12    079393 CA 
         36169    Mbudzane Rock J    Gda    30-May-11    3.45    1 Au    01-Jun-11    21-May-12    079393 CA 
         36170    Mbudzane Rock K    Gda    30-May-11    5.1    1 Au    01-Jun-11    21-May-12    079394 CA 
         36171    Mbudzane Rock L    Gda    30-May-11    8    2 Au    01-Jun-11    21-May-12    079394 CA 
         36172    Mbudzane Rock M    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079394 CA 
         36173    Mbudzane Rock N    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079394 CA 
         36174    Mbudzane Rock O    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079394 CA 
         36175    Mbudzane Rock P    Gda    30-May-11    6.23    2 Au    01-Jun-11    21-May-12    079394 CA 
         36176    Mbudzane Rock A1    Gda    30-May-11    9.7    2 Au    01-Jun-11    21-May-12    079394 CA 
         36177    Mbudzane Rock A2    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079394 CA 
         36178    Mbudzane Rock A3    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079394 CA 
         36179    Mbudzane Rock A4    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079394 CA 
         36180    Mbudzane Rock A5    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079395 CA 
         36181    Mbudzane Rock A6    Gda    30-May-11    3.5    1 Au    01-Jun-11    21-May-12    079395 CA 
         36182    Mbudzane Rock B1    Gda    30-May-11    2.25    1 Au    01-Jun-11    21-May-12    079395 CA 
         36183    Mbudzane Rock B2    Gda    30-May-11    6.5    2 Au    01-Jun-11    21-May-12    079395 CA 
         36184    Mbudzane Rock B3    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079395 CA 
         36185    Mbudzane Rock B4    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079395 CA 
         36186    Mbudzane Rock B5    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079395 CA 
         36187    Mbudzane Rock B6    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079395 CA 
         36188    Mbudzane Rock B7    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079395 CA 
         36189    Mbudzane Rock B8    Gda    30-May-11    3.2    1 Au    01-Jun-11    21-May-12    079395 CA 
         36190    Mbudzane Rock B9    Gda    30-May-11    6.5    2 Au    01-Jun-11    21-May-12    079397 CA 
         36191    Mbudzane Rock C1    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079397 CA 
         36192    Mbudzane Rock C2    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079397 CA 
         36193    Mbudzane Rock C3    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079397 CA 
         36194    Mbudzane Rock C4    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079397 CA 
         36195    Mbudzane Rock C5    Gda    30-May-11    10    2 Au    01-Jun-11    21-May-12    079397 CA 
 

 

36196

Mbudzane Rock C6

Gda

30-May-11

2.25

1

Au

01-Jun-11

21-May-12

079397 CA

36197

Mbudzane Rock C7

Gda

30-May-11

6

2

Au

01-Jun-11

21-May-12

079397 CA

36198

Mbudzane Rock C8

Gda

30-May-11

9.4

2

Au

01-Jun-11

21-May-12

079397 CA

36199

Mbudzane Rock C9

Gda

30-May-11

9.4

2

Au

01-Jun-11

21-May-12

079397 CA

36200

Mbudzane Rock D1

Gda

30-May-11

9.4

2

Au

01-Jun-11

21-May-12

079397 CA

36201

Mbudzane Rock D2

Gda

30-May-11

9.4

2

Au

01-Jun-11

21-May-12

079397 CA

36202

Mbudzane Rock D3

Gda

30-May-11

9.17

2

Au

01-Jun-11

21-May-12

079397 CA

25610

Sabiwa North 1/2

Gda

30-May-11

7

2

Au

01-Jun-11

30-May-12

079398 CA

35753

Lima1

Gda

04-Sep-10

8

2

Au

10-Sep-10

23-Jun-11

079047 CA

35754

Lima2

Gda

04-Sep-10

8

2

Au

10-Sep-10

23-Jun-11

079047 CA

35755

Lima3

Gda

04-Sep-10

10

2

Au

10-Sep-10

23-Jun-11

079047 CA

35756

Lima4

Gda

04-Sep-10

10

2

Au

10-Sep-10

23-Jun-11

079047 CA

35757

Lima5

Gda

04-Sep-10

10

2

Au

10-Sep-10

23-Jun-11

079047 CA

35758

Lima6

Gda

04-Sep-10

10

2

Au

10-Sep-10

23-Jun-11

079047 CA

35759

Lima7

Gda

04-Sep-10

10

2

Au

10-Sep-10

23-Jun-11

079047 CA

35760

Lima8

Gda

04-Sep-10

6

2

Au

10-Sep-10

23-Jun-11

079047 CA

35761

Lima9

Gda

04-Sep-10

10

2

Au

10-Sep-10

23-Jun-11

079047 CA

35762

Lima10

Gda

04-Sep-10

10

2

Au

10-Sep-10

23-Jun-11

079047 CA

35763

Lima11

Gda

04-Sep-10

10

2

Au

10-Sep-10

23-Jun-11

079047 CA

35764

Lima12

Gda

04-Sep-10

10

2

Au

10-Sep-10

23-Jun-11

079047 CA

35765

Lima13

Gda

04-Sep-10

10

2

Au

10-Sep-10

23-Jun-11

079047 CA

35766

Lima14

Gda

04-Sep-10

10

2

Au

10-Sep-10

23-Jun-11

079047 CA

35767

Lima15

Gda

04-Sep-10

10

2

Au

10-Sep-10

23-Jun-11

079047 CA

35768

Lima16

Gda

04-Sep-10

5

1

Au

10-Sep-10

23-Jun-11

079047 CA

GA248

Blanket B

Gda

04-Sep-10

10

2

Au

10-Sep-10

23-Jun-11

079045 CA

6874BM

Blanket K

Gda

04-Sep-10

25

5

Tu

10-Sep-10

16-Jun-11

079048 CA

GA247

Blanket A

Gda

04-Sep-10

9

2

Au

10-Sep-10

23-Jul-11

079045 CA

GA2994

Valentine 63

Gda

04-Sep-10

10

2

Au

10-Sep-10

11-Jul-11

079046 CA

GA2995

Valentine 64

Gda

04-Sep-10

10

2

Au

10-Sep-10

11-Jul-11

079046 CA

 



GA2996    Valentine 65    Gda    04-Sep-10    10    2    Au    10-Sep-10    11-Jul-11    079046 CA 
19923    Jethro    Gda    04-Sep-10    9    2    Au    10-Sep-10    23-Jul-11    079045 CA 
34744    Sheet A    Gda    04-Sep-10    7.5    2    Au    10-Sep-10    28-Jul-11    079045 CA 
34751    Sheet B    Gda    04-Sep-10    1    1    Au    10-Sep-10    28-Jul-11    079045 CA 
34747    Sheet    Gda    04-Sep-10    9.2    2    Au    10-Sep-10    28-Jul-11    079045 CA 
34748    Sheet North A    Gda    04-Sep-10    9.2    2    Au    10-Sep-10    28-Jul-11    079045 CA 
34749    Sheet North B    Gda    04-Sep-10    9.2    2    Au    10-Sep-10    28-Jul-11    079045 CA 
34750    Sheet North C    Gda    04-Sep-10    2.99    1    Au    10-Sep-10    28-Jul-11    079045 CA 
GA446    Feudal South    Gda    04-Sep-10    4    1    Au    10-Sep-10    15-Aug-11    079046 CA 
GA512    Blanket F    Gda    04-Sep-10    6    2    Au    10-Sep-10    16-Aug-11    079046 CA 
21065    Feudal D B E    Gda    04-Sep-10    8    2    Au    10-Sep-10    19-Aug-11    079045 CA 
9629BM    Sheet 3    Gda    04-Sep-10    14    3    Cu    10-Sep-10    26-Aug-11    079048 CA 
9627BM    Blanket L    Gda    04-Sep-10    23    5    Cu    10-Sep-10    26-Aug-11    079048 CA 
9628BM    Sabiwa 3    Gda    04-Sep-10    15    3    Cu    10-Sep-10    26-Aug-11    079048 CA 
10358BM    Feudal West    Gda    04-Sep-10    25    5    As    10-Sep-10    25-Sep-11    079048 CA 
21775    D T    Gda    04-Sep-10    10    2    Au    17-Sep-10    01-Sep-11    079058 CA 
GA513    Sabiwa 2    Gda    15-Dec-10    5    1    Au    23-Dec-10    09-Sep-11    079146 CA 
645    Site Housing    Gda    15-Dec-10    8    8        11-Dec-09    15-Sep-11    026907 XX 
646    Site Dump    Gda    15-Dec-10    18    18        23-Dec-10    15-Sep-11    028469 XX 
701    Site Compound    Gda    15-Dec-10    10    10        23-Dec-10    15-Sep-11    028469 XX 
10925BM    Lima H    Gda    15-Dec-10    93    19    As    23-Dec-10    23-Sep-11    079149 CA 
10922BM    Sabiwa 13    Gda    15-Dec-10    68    14    As    23-Dec-10    23-Sep-11    079149 CA 
10923BM    Sabiwa 14    Gda    15-Dec-10    93    19    As    23-Dec-10    23-Sep-11    079149 CA 
GA341    Sheet 2    Gda    15-Dec-10    9    2    Au    23-Dec-10    14-Oct-11    079146 CA 
10050BM    Sabiwa East    Gda    15-Dec-10    20    4    Cu    23-Dec-10    15-Oct-11    079150 CA 
10049BM    Sabiwa 4    Gda    15-Dec-10    20    4    Cu    23-Dec-10    15-Oct-11    079150 CA 
10051BM    Feudal 2    Gda    15-Dec-10    25    5    Tu    23-Dec-10    15-Oct-11    079150 CA 
34856    Sheet North D    Gda    15-Dec-10    2.45    1    Au    23-Dec-10    08-Nov-11    079148 CA 
34052    Lima I    Gda    15-Dec-10    10    2    Au    23-Dec-10    16-Nov-12    079148 CA 


34053    Lima J    Gda    15-Dec-10    10    2    Au    23-Dec-10    16-Nov-12    079148 CA 
34054    Lima K    Gda    04-Sep-10    10    2    Au    17-Sep-10    16-Nov-11    079057 CA 
34055    Lima L    Gda    04-Sep-10    10    2    Au    17-Sep-10    16-Nov-11    079057 CA 
30456    Lima M    Gda    04-Sep-10    10    2    Au    17-Sep-10    16-Nov-11    079057 CA 
34057    Lima N    Gda    04-Sep-10    10    2    Au    17-Sep-10    16-Nov-11    079057 CA 
34058    Lima O    Gda    04-Sep-10    10    2    Au    17-Sep-10    16-Nov-11    079057 CA 
34059    Lima P    Gda    15-Dec-10    5    1    Au    23-Dec-10    16-Nov-11    079148 CA 
34060    Lima Q    Gda    15-Dec-10    5    1    Au    23-Dec-10    16-Nov-11    079148 CA 
34061    Lima R    Gda    04-Sep-10    10    2    Au    17-Sep-10    16-Nov-11    079057 CA 
34062    Lima S    Gda    04-Sep-10    10    2    Au    17-Sep-10    16-Nov-11    079057 CA 
34063    Lima T    Gda    04-Sep-10    10    2    Au    17-Sep-10    16-Nov-11    079057 CA 
34064    Lima U    Gda    04-Sep-10    10    2    Au    17-Sep-10    16-Nov-11    079057 CA 
34065    Lima V    Gda    04-Sep-10    10    2    Au    17-Sep-10    16-Nov-11    079057 CA 
34066    Lima W    Gda    04-Sep-10    10    2    Au    17-Sep-10    16-Nov-11    079057 CA 
34067    Lima X    Gda    04-Sep-10    10    2    Au    17-Sep-10    16-Nov-11    079057 CA 
10894BM    Sabiwa 10    Gda    15-Dec-10    136    28    As    23-Dec-10    18-Nov-11    079150 CA 
10895BM    Sabiwa 11    Gda    15-Dec-10    99    20    As    23-Dec-10    18-Nov-11    079150 CA 
10896BM    Sabiwa 12    Gda    15-Dec-10    115    23    As    23-Dec-10    18-Nov-11    079150 CA 
32939    Smiler Gold Dump    Gda    15-Dec-10    10    2    Au    23-Dec-10    26-Nov-11    028462 XX 
1978    Sabiwa South 1/2    Gda    15-Dec-10    6    2    Au    23-Dec-10    30-Nov-11    079148 CA 
GA5030    Blanket 3    Gda    15-Dec-10    7    2    Au    23-Dec-10    30-Nov-11    079148 CA 
577    Site Cemetry    Gda    15-Dec-10    2    2    Site    23-Dec-10    14-Dec-11    028463 XX 
575    Site Compound    Gda    15-Dec-10    17    17    Site    23-Dec-10    14-Dec-11    028463 XX 
578    Site Magazine    Gda    15-Dec-10    29    29    Site    23-Dec-10    14-Dec-11    028463 XX 
574    Site Compound    Gda    15-Dec-10    7    7    Site    23-Dec-10    14-Dec-11    028463 XX 
1817    Blanket    Gda    15-Dec-10    13    3    Au    23-Dec-10    31-Dec-11    079148 CA 
3958    Blanket 2    Gda    15-Dec-10    8    2    Au    23-Dec-10    31-Dec-11    079148 CA 
GA349    Blanket D    Gda    15-Dec-10    4    1    Au    23-Dec-10    31-Dec-11    079146 CA 
                2883.57    732                 
 


BLANKET MINE NON PRODUCING CLAIMS 2010 − INSPECTION STATUS

Name

Reg. No.

Area

No. Claims

No. x 5 ha

Type

Insp. Date

Date Applied

Date Renewed

Expiry Date

Certificate No.

 

Penzance North

11264BM

Gwanda

40

8

Arsenic

07-Jan

28-Feb-11

02-Mar-11

07-Jan-12

079302 CA

Penzance S2

11265BM

Gwanda

35

7

Arsenic

07-Jan

28-Feb-11

02-Mar-11

07-Jan-12

079302 CA

Bunny's Luck

10443BM

Gwanda

25

5

Copper

15-Jan

28-Feb-11

02-Mar-11

15-Jan-12

079303 CA

Bunny's Luck East

10444BM

Gwanda

25

5

Copper

15-Jan

28-Feb-11

02-Mar-11

15-Jan-12

079303 CA

Bunny's Luck E1

10445BM

Gwanda

25

5

Copper

15-Jan

28-Feb-11

02-Mar-11

15-Jan-12

079303 CA

Bunny's Luck E2

10446BM

Gwanda

25

5

Copper

15-Jan

28-Feb-11

02-Mar-11

15-Jan-12

079303 CA

Bunny's Luck E3

10447BM

Gwanda

25

5

Copper

15-Jan

28-Feb-11

02-Mar-11

15-Jan-12

079303 CA

Bunny's Luck E4

10448BM

Gwanda

25

5

Copper

15-Jan

28-Feb-11

02-Mar-11

15-Jan-12

079303 CA

Cinderella

11122BM

Gwanda

4

1

Arsenic

19-Jan

28-Feb-11

02-Mar-11

19-Jan-12

079302 CA

Cinderella E

11123BM

Gwanda

13

3

Arsenic

19-Jan

28-Feb-11

02-Mar-11

19-Jan-12

079302 CA

Eagle 16

11266BM

Gwanda

51

11

Arsenic

21-Jan

28-Feb-11

02-Mar-11

21-Jan-12

079302 CA

Spruit

10623BM

Gwanda

81

17

Nickel

24-Feb

28-Feb-11

02-Mar-11

24-Feb-12

079302 CA

Spruit 2

10624BM

Gwanda

81

17

Nickel

24-Feb

28-Feb-11

02-Mar-11

24-Feb-12

079302 CA

Spruit 4

GA532BM

Gwanda

50

10

Nickel

22/Oct

28-Feb-11

02-Mar-11

22-Oct-12

079300 CA

Spruit 5

GA533BM

Gwanda

110

22

Nickel

22/Oct

28-Feb-11

02-Mar-11

22-Oct-12

079300 CA

Spruit 6

GA534BM

Gwanda

66

14

Nickel

22/Oct

28-Feb-11

02-Mar-11

22-Oct-12

079300 CA

Shakeshake

10625BM

Gwanda

108

22

Nickel

24-Feb

28-Feb-11

02-Mar-11

24-Feb-12

079302 CA

Shakeshake 2

10626BM

Gwanda

108

22

Nickel

24-Feb

28-Feb-11

02-Mar-11

24-Feb-12

079302 CA

Shakeshake 3

10627BM

Gwanda

72

15

Nickel

24-Feb

28-Feb-11

02-Mar-11

24-Feb-12

079302 CA

Surprise

10628BM

Gwanda

95

19

Nickel

24-Feb

28-Feb-11

02-Mar-11

24-Feb-12

079302 CA

Surprise 2

10629BM

Gwanda

101

21

Nickel

24-Feb

28-Feb-11

02-Mar-11

24-Feb-12

079302 CA

Abercorn 11

11269BM

Gwanda

66

14

Arsenic

11-Mar

28-Feb-11

02-Mar-11

11-Mar-12

079302 CA

Cinderella B

10824BM

Gwanda

128

26

Arsenic

09-Apr

11-Mar-11

11-Mar-11

09-Apr-12

2079327 CA

Cinderella C

10825BM

Gwanda

137

28

Arsenic

09-Apr

11-Mar-11

11-Mar-11

09-Apr-12

2079327 CA

Cinderella D

10826BM

Gwanda

146

30

Arsenic

29-Apr

28-Feb-11

02-Mar-11

29-Apr-11

079300 CA

Banshee J

11093BM

Gwanda

135

27

Arsenic

14-Jul

15-Dec-10

23-Dec-10

14-Jul-11

079149 CA

Great Abercorn

10602BM

Gwanda

150

30

Tungsten

25-Jul

01-Sep-10

10-Sep-10

25-Jul-11

079049 CA

Dan's Luck North

11268BM

Gwanda

27

6

Arsenic

11-Mar

28-Feb-11

02-Mar-11

11-Mar-12

079302 CA

Dan's Luck South

GA538BM

Gwanda

20

4

Arsenic

06-Jul

01-Sep-10

10-Sep-10

16-Jul-11

079049 CA

Dan's Luck East

GA537BM

Gwanda

88

18

Arsenic

06-Jul

01-Sep-10

10-Sep-10

06-Jul-11

079049 CA

Penzance South

8838BM

Gwanda

24

5

Copper

27-Sep

01-Mar-10

24-Mar-10

27-Sep-10

026477 XX

Abercorn

33251

Gwanda

10

2

Gold Dump

28-Apr

28-Feb-11

02-Mar-11

28-Apr-12

081141 B

Mazeppa

32769

Gwanda

3

1

Gold Dump

26-May

01-Jul-10

12-Jul-10

26-May-11

076832 B

Dan's Luck

32776

Gwanda

10

2

Gold Dump

13-May

01-Jul-10

12-Jul-10

13-May-11

076832 B

Will South

33143

Gwanda

5

1

Gold Dump

30-Sep

01-Sep-10

17-Sep-10

30-Sep-11

028193 XX

Mascot

GA 583

Gwanda

10

2

Gold Reef

03-Jan

28-Feb-11

02-Mar-11

03-Jan-12

079304 CA

Vulture

5031

Gwanda

10

2

Gold Reef

13-Jan

28-Feb-11

02-Mar-11

13-Jan-12

079304 CA

Rubicon O

34913

Gwanda

10

2

Gold Reef

24-Jan

28-Feb-11

02-Mar-11

23-Jan-12

079315 CA

Rubicon P

34914

Gwanda

9

2

Gold Reef

24-Jan

28-Feb-11

02-Mar-11

23-Jan-12

079315 CA

Rubicon Q

34915

Gwanda

8

2

Gold Reef

24-Jan

28-Feb-11

02-Mar-11

23-Jan-12

079315 CA

Rubicon R

34916

Gwanda

10

2

Gold Reef

24-Jan

28-Feb-11

02-Mar-11

23-Jan-12

079315 CA

Rubicon S

34917

Gwanda

10

2

Gold Reef

24-Jan

28-Feb-11

02-Mar-11

23-Jan-12

079315 CA

Rubicon T

34918

Gwanda

7

2

Gold Reef

24-Jan

28-Feb-11

02-Mar-11

23-Jan-12

079315 CA

Rubicon U

34919

Gwanda

10

2

Gold Reef

24-Jan

28-Feb-11

02-Mar-11

23-Jan-12

079315 CA

Rubicon V

34920

Gwanda

10

2

Gold Reef

24-Jan

28-Feb-11

02-Mar-11

23-Jan-12

079315 CA

Rubicon W

34921

Gwanda

6

2

Gold Reef

24-Jan

28-Feb-11

02-Mar-11

23-Jan-12

079315 CA

Rubicon

34519

Gwanda

10

2

Gold Reef

03-Mar

28-Feb-11

02-Mar-11

03-Mar-12

079315 CA

Rubicon 7

34520

Gwanda

10

2

Gold Reef

03-Mar

28-Feb-11

02-Mar-11

03-Mar-12

079315 CA

Mascot 5

32756

Gwanda

10

2

Gold Reef

29-Apr

28-Feb-11

02-Mar-11

29-Apr-12

079316 CA

Annette 9

GA3258

Gwanda

8

2

Gold Reef

30-Apr

28-Feb-11

02-Mar-11

30-Apr-12

079316 CA

Annette 10

GA3259

Gwanda

8

2

Gold Reef

30-Apr

28-Feb-11

02-Mar-11

30-Apr-12

079316 CA

Annette 11

GA3260

Gwanda

8

2

Gold Reef

30-Apr

28-Feb-11

02-Mar-11

30-Apr-12

079316 CA

Mascot 2

29657

Gwanda

10

2

Gold Reef

03-May

30-May-11

06-Jan-11

03-May-12

081013 CA

Dan's Luck N2

GA3769B

Gwanda

8

2

Gold Reef

06-Jul

01-Sep-10

10-Sep-10

06-Jul-11

079044 CA

GG 7

GA3769

Gwanda

10

2

Gold Reef

06-Jul

01-Sep-10

10-Sep-10

06-Jul-11

079044 CA

GG 8

GA3770

Gwanda

7

2

Gold Reef

06-Jul

01-Sep-10

10-Sep-10

06-Jul-11

079044 CA

GG 9

GA3771

Gwanda

9

2

Gold Reef

06-Jul

01-Sep-10

10-Sep-10

06-Jul-11

079044 CA

GG 10

GA3772

Gwanda

4.9

1

Gold Reef

06-Jul

01-Sep-10

10-Sep-10

06-Jul-11

079044 CA

GG 11

GA3773

Gwanda

10

2

Gold Reef

06-Jul

01-Sep-10

10-Sep-10

06-Jul-11

079044 CA

GG 12

GA3774

Gwanda

8

2

Gold Reef

06-Jul

01-Sep-10

10-Sep-10

06-Jul-11

079044 CA

GG 13

GA3775

Gwanda

4

1

Gold Reef

06-Jul

01-Sep-10

10-Sep-10

06-Jul-11

079044 CA

GG

GA651

Gwanda

10

2

Gold Reef

05-Jul

01-Sep-10

10-Sep-10

05-Jun-11

079043 CA

GG2

GA942

Gwanda

10

2

Gold Reef

05-Jul

01-Sep-10

10-Sep-10

05-Jun-11

079043 CA

GG3

GA943

Gwanda

10

2

Gold Reef

05-Jul

01-Sep-10

10-Sep-10

05-Jun-11

079043 CA

GG4

GA944

Gwanda

10

2

Gold Reef

05-Jul

01-Sep-10

10-Sep-10

05-Jun-11

079043 CA

GG5

GA945

Gwanda

10

2

Gold Reef

05-Jul

01-Sep-10

10-Sep-10

05-Jun-11

079043 CA

GG6

GA946

Gwanda

10

2

Gold Reef

05-Jul

01-Sep-10

10-Sep-10

05-Jun-11

079043 CA

GGA

GA947

Gwanda

10

2

Gold Reef

05-Jul

01-Sep-10

10-Sep-10

05-Jun-11

079043 CA

GGB

GA948

Gwanda

10

2

Gold Reef

05-Jul

01-Sep-10

10-Sep-10

05-Jun-11

079043 CA

GGC

GA949

Gwanda

10

2

Gold Reef

05-Jul

01-Sep-10

10-Sep-10

05-Jun-11

079043 CA

GGD

GA950

Gwanda

10

2

Gold Reef

05-Jul

01-Sep-10

10-Sep-10

05-Jun-11

079043 CA

GGE

GA951

Gwanda

10

2

Gold Reef

08-Aug-10

01-Sep-10

10-Sep-10

08-Aug-11

079043 CA

Rubicon C

34795

Gwanda

10

2

Gold Reef

08-Sep

23-Dec-10

23-Dec-10

08-Sep-11

079147 CA

Rubicon D

34796

Gwanda

10

2

Gold Reef

08-Sep

23-Dec-10

23-Dec-10

08-Sep-11

079147 CA

Rubicon E

34797

Gwanda

10

2

Gold Reef

08-Sep

23-Dec-10

23-Dec-10

08-Sep-11

079147 CA

Rubicon F

34798

Gwanda

10

2

Gold Reef

08-Sep

23-Dec-10

23-Dec-10

08-Sep-11

079147 CA

Rubicon G

34799

Gwanda

10

2

Gold Reef

08-Sep

23-Dec-10

23-Dec-10

08-Sep-11

079147 CA

Rubicon H

34800

Gwanda

10

2

Gold Reef

08-Sep

23-Dec-10

23-Dec-10

08-Sep-11

079146 CA

Rubicon I

34801

Gwanda

10

2

Gold Reef

08-Sep

23-Dec-10

23-Dec-10

08-Sep-11

079146 CA

Rubicon J

34802

Gwanda

10

2

Gold Reef

08-Sep

15-Dec-10

23-Dec-10

08-Sep-11

079147 CA

Rubicon K

34803

Gwanda

10

2

Gold Reef

08-Sep

15-Dec-10

23-Dec-10

08-Sep-11

079147 CA

Rubicon L

34804

Gwanda

10

2

Gold Reef

08-Sep

15-Dec-10

23-Dec-10

08-Sep-11

079147 CA

Rubicon M

34805

Gwanda

10

2

Gold Reef

08-Sep

15-Dec-10

23-Dec-10

08-Sep-11

079147 CA

Rubicon N

34806

Gwanda

10

2

Gold Reef

08-Sep

15-Dec-10

23-Dec-10

08-Sep-11

079152 CA

Eagle Hawk

30544

Gwanda

10

2

Gold reef

08-Oct

15-Dec-10

23-Dec-10

08-Oct-11

079146 CA

Gum 1

GA3060

Gwanda

6

2

Gold reef

10-Oct

15-Dec-10

23-Dec-10

10-Oct-11

079146 CA

Gum 2

GA3061

Gwanda

6

2

Gold reef

10-Oct

15-Dec-10

23-Dec-10

10-Oct-11

079146 CA

Lincoln

30548

Gwanda

10

2

Gold Reef

20-Oct

15-Dec-10

23-Dec-10

20-Oct-11

079146 CA

Vulture Dble Bank

8106

Gwanda

10

2

Gold Reef

13-Dec

15-Dec-10

23-Dec-10

12-Dec-12

079146 CA

 

Sites

Site

649

Gwanda

4

 

W/shop, water

08-May

01-Sep-10

10-Sep-10

08-May-11

028179 XX

Site

512

Gwanda

1

 

Water

31-Dec

15-Dec-10

23-Dec-10

31-Dec-11

028463 XX

Site

607

Gwanda

1

 

Water

24-Sep

15-Dec-10

23-Dec-10

24-Sep-11

026907 XX

Site

608

Gwanda

1

 

Water

24-Sep

15-Dec-10

23-Dec-09

24-Sep-11

028469 XX

Site

609

Gwanda

1

 

Water

24-Sep

15-Dec-10

23-Dec-09

24-Sep-11

028469 XX

Site

610

Gwanda

1

 

Water

24-Sep

15-Dec-10

23-Dec-09

24-Sep-11

028469 XX

  

KADOMA CLAIMS

Golden Donkey

1254

Kadoma

4

1

Gold Reef

18-Mar-04

08-Dec-07

Awaiting certificate

 

 

Golden Donkey 2

1255

Kadoma

4

1

Gold Reef

18-Mar-96

08-Dec-07

Awaiting certificate

 

 

Headley NE

1256

Kadoma

10

2

Gold Reef

18-Mar-96

08-Dec-07

Awaiting certificate

 

 

Headley NE 2

1257

Kadoma

10

2

Gold Reef

18-Mar-96

08-Dec-07

Awaiting certificate

 

 

Headley NE 3

1258

Kadoma

10

2

Gold Reef

18-Mar-96

08-Dec-07

Awaiting certificate

 

 

 

BONDURA / SHAMVA CLAIMS

Electra 7

18482BM

Shamva(Hre)

12

3

Arsenic

13-Apr

10-Oct-07

Awaiting certificate

 

 

Apollo 51

28382BM

Bindura(Hre)

44

9

Arsenic

02-Nov

10-Oct-07

20-Apr-10

27-Sep-11

226641 P

Apollo 52

28383BM

Bindura(Hre)

43

9

Arsenic

02-Nov

10-Oct-07

Awaiting certificate

 

 

Apollo 53

28384BM

Bindura(Hre)

9

2

Arsenic

02-Nov

10-Oct-07

20-Apr-10

27-Sep-11

226641 P

Apollo 19C

17438

Bindura(Hre)

8

2

Gold Reef

09-Mar

08-Dec-07

Awaiting certificate

 

 

Apollo 20C

17439

Bindura(Hre)

8

2

Gold Reef

09-Mar

08-Dec-07

Awaiting certificate

 

 

Apollo 21C

17440

Bindura(Hre)

7

2

Gold Reef

09-Mar

08-Dec-07

Awaiting certificate

 

 

Apollo 22C

17441

Bindura(Hre)

4

1

Gold Reef

09-Mar

08-Dec-07

Awaiting certificate

 

 

Apollo 23C

17442

Bindura(Hre)

8

2

Gold Reef

09-Mar

08-Dec-07

Awaiting certificate

 

 

Apollo 24C

17443

Bindura(Hre)

5

1

Gold Reef

09-Mar

08-Dec-07

Awaiting certificate

 

 

Apollo 25C

17444

Bindura(Hre)

7

2

Gold Reef

09-Mar

08-Dec-07

Awaiting certificate

 

 

Apollo 26C

17445

Bindura(Hre)

5

1

Gold Reef

09-Mar

08-Dec-07

Awaiting certificate

 

 

Apollo 27C

17446

Bindura(Hre)

2

1

Gold Reef

09-Mar

08-Dec-07

Awaiting certificate

 

 

Apollo C

28665

Bindura(Hre)

10

2

Gold Reef

27-Sep

19-Jul-08

Awaiting certificate

 

 

Apollo 2C

28666

Bindura(Hre)

5

1

Gold Reef

27-Sep

 

22-Jan-10

27-Sep-11

245208 P

Apollo 3C

28667

Bindura(Hre)

10

2

Gold Reef

27-Sep

19-Jul-08

Awaiting certificate

 

 

Apollo 4C

28735

Bindura(Hre)

7

2

Gold Reef

27-Sep

19-Jul-08

Awaiting certificate

 

 

Apollo 5C

28668

Bindura(Hre)

7

2

Gold Reef

27-Sep

 

22-Jan-10

27-Sep-11

245208 P

Apollo 6C

28669

Bindura(Hre)

10

2

Gold Reef

27-Sep

 

22-Jan-10

27-Sep-11

245208 P

Apollo 7C

28670

Bindura(Hre)

10

2

Gold Reef

27-Sep

 

22-Jan-10

27-Sep-11

245208 P

Apollo 8C

28671

Bindura(Hre)

10

2

Gold Reef

27-Sep

 

22-Jan-10

27-Sep-11

245208 P

Apollo 9C

28672

Bindura(Hre)

10

2

Gold Reef

27-Sep

19-Jul-08

Awaiting certificate

 

 

Apollo 10C

28673

Bindura(Hre)

10

2

Gold Reef

27-Sep

19-Jul-08

20-Apr-10

27-Sep-11

226641 P

Apollo 11C

28674

Bindura(Hre)

10

2

Gold Reef

27-Sep

 

22-Jan-10

27-Sep-11

245208 P

Apollo 12C

28675

Bindura(Hre)

6

2

Gold Reef

27-Sep

 

22-Jan-10

27-Sep-11

245208 P

Apollo 13C

28734

Bindura(Hre)

9

2

Gold Reef

27-Sep

19-Jul-08

20-Apr-10

27-Sep-11

226641 P

Apollo 14C

28679

Bindura(Hre)

9

2

Gold Reef

27-Sep

19-Jul-08

20-Apr-10

27-Sep-11

226641 P

Apollo 15C

28678

Bindura(Hre)

8

2

Gold Reef

27-Sep

19-Jul-08

Awaiting certificate

 

 

Apollo 16C

28677

Bindura(Hre)

8

2

Gold Reef

27-Sep

 

22-Jan-10

27-Sep-11

245208 P

Apollo 17C

28676

Bindura(Hre)

6

2

Gold Reef

27-Sep

 

22-Jan-10

27-Sep-11

245208 P

Apollo 18C

28736

Bindura(Hre)

9

2

Gold Reef

27-Sep

 

22-Jan-10

27-Sep-11

245208 P

Avilin 23A

28030

Bindura(Hre)

10

2

Gold Reef

08-Sep

19-Jul-08

Awaiting certificate

 

 

Avilin 66

28031

Bindura(Hre)

10

2

Gold Reef

08-Sep

19-Jul-08

Awaiting certificate

 

 

Avilin 67

28032

Bindura(Hre)

2

1

Gold Reef

08-Sep

19-Jul-08

Awaiting certificate

 

 

Avilin 30

28033

Bindura(Hre)

10

2

Gold Reef

08-Sep

19-Jul-08

Awaiting certificate

 

 

Avilin 68

28034

Bindura(Hre)

10

2

Gold Reef

08-Sep

19-Jul-08

Awaiting certificate

 

 

Avilin 38

28035

Bindura(Hre)

9

2

Gold Reef

08-Sep

19-Jul-08

Awaiting certificate

 

 

Avilin 69

28036

Bindura(Hre)

2

1

Gold Reef

08-Sep

19-Jul-08

Awaiting certificate

 

 

Avilin 46

28037

Bindura(Hre)

10

2

Gold Reef

08-Sep

19-Jul-08

Awaiting certificate

 

 

Avilin 22

28038

Bindura(Hre)

10

2

Gold Reef

08-Sep

19-Jul-08

Awaiting certificate

 

 

Avilin 20

28039

Bindura(Hre)

10

2

Gold Reef

08-Sep

19-Jul-08

Awaiting certificate

 

 

Avilin 70

28040

Bindura(Hre)

10

2

Gold Reef

08-Sep

19-Jul-08

Awaiting certificate

 

 

Avilin 71

28041

Bindura(Hre)

3

1

Gold Reef

08-Sep

19-Jul-08

Awaiting certificate

 

 

Avilin 44

28042

Bindura(Hre)

6

2

Gold Reef

08-Sep

19-Jul-08

Awaiting certificate

 

 

Avilin 72

28043

Bindura(Hre)

7

2

Gold Reef

08-Sep

19-Jul-08

Awaiting certificate

 

 

Avilin 73

28044

Bindura(Hre)

8

2

Gold Reef

08-Sep

19-Jul-08

Awaiting certificate

 

 

 

BULAWAYO (BUBI) CLAIMS

Stu 21

12072BM

Bubi(Byo)

150

30

Arsenic

07-Jan

01-Mar-10

23-Mar-10

07-Jan-11

021903 XX

Stu 22

12073BM

Bubi(Byo)

150

30

Arsenic

07-Jan

01-Mar-10

23-Mar-10

07-Jan-11

021903 XX

Stu 23

12074BM

Bubi(Byo)

150

30

Arsenic

07-Jan

01-Mar-10

23-Mar-10

07-Jan-11

021903 XX

Chikosi 'A'

12011BM

Bubi(Byo)

45

9

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Chikosi 'B'

12012BM

Bubi(Byo)

27

6

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Chikosi 'C'

12013BM

Bubi(Byo)

119

24

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Chikosi 'D'

12014BM

Bubi(Byo)

58.5

12

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Chikosi 'E'

12015BM

Bubi(Byo)

150

30

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Chikosi 'F'

12016BM

Bubi(Byo)

60

12

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Chikosi 'G'

12017BM

Bubi(Byo)

40

8

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Sandy 8A

12018BM

Bubi(Byo)

150

30

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Sandy 8B

12019BM

Bubi(Byo)

150

30

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Stu 18

12021BM

Bubi(Byo)

45

9

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Ruswayi 37

12022BM

Bubi(Byo)

136

28

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Ruswayi 38

12023BM

Bubi(Byo)

134

27

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Ruswayi 39

12024BM

Bubi(Byo)

50

10

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Ruswayi 40

12025BM

Bubi(Byo)

34

7

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Ruswayi 41

12026BM

Bubi(Byo)

150

30

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Ruswayi 42

12027BM

Bubi(Byo)

40

8

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Lonely 49

12028BM

Bubi(Byo)

70

14

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Lonely 50

12029BM

Bubi(Byo)

150

30

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Lonely 51

12030BM

Bubi(Byo)

150

30

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Lonely 52

12075BM

Bubi(Byo)

150

30

Arsenic

02-Feb

01-Mar-10

23-Mar-10

02-Feb-11

021903 XX

Lonely 53

12076BM

Bubi(Byo)

150

30

Arsenic

02-Feb

01-Mar-10

23-Mar-10

02-Feb-11

021903 XX

Spawn

12031BM

Bubi(Byo)

30

6

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Spawn 2

12032BM

Bubi(Byo)

137

28

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

Spawn 3

12033BM

Bubi(Byo)

144

29

Arsenic

30-Jan

01-Mar-10

23-Mar-10

30-Jan-11

021903 XX

 

 

 


Appendix 4:

Production History of Blanket
Mine

 

 

 

 

 

 

 

 

 

 

 




Appendix 5:

Certificate of Accreditation –
Antech Laboratories (Pty) Ltd