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INVENTORIES: (Tables)

6 Months Ended

Jun. 30, 2011

INVENTORIES:

Schedule of inventories

(in millions)		At June 30, 2011			At December 31, 2010
Inventory, current:
Metals at lower of average cost or market:
Finished goods		$	101.3		$	67.9
Work-in-process		248.0			227.6
Supplies at average cost		260.1			245.5
Total current inventory		$	609.4		$	541.0
Inventory, long-term
Long-term leach stockpiles		$	60.0		$	29.7

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- Definition

Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Topic
-SubTopic
-Publisher SEC
-Number 210
-Article 5
-Subparagraph a,b,c
-Name Regulation S-X (SX)
-Paragraph 6
-Section 2

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