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Inventories | 12 Months Ended
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Dec. 31, 2018
Classes of current inventories [abstract] |
Inventories | 10. Inventories
| December 31, 2018 |  |  | December 31, 2017 |
Ore stockpiles | $ | 1,620 |  |  | $ | 3,297 |
In-process inventory and finished goods | 59,974 |  |  | 96,651 |
Materials and supplies | 76,291 |  |  | 68,896 |
| $ | 137,885 |  |  | $ | 168,844 |
The cost of materials and supplies consumed during the year and included in production costs amounted to $87,269 (2017 – $120,422). Inventory write downs related to zinc inventory of $269 (2017 – $444) and to pyrite inventory of $1,196 (2017 – $nil) were recognized during the year. As at December 31, 2018, all inventories are held at cost.

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- Definition The entire disclosure for inventories. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 2 -IssueDate 2018-01-01 -Section Disclosure -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=2&date=2018-03-01&anchor=sect_Disclosure&doctype=Standard -URIDate 2018-03-16 + Details
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