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INVENTORIES: (Tables)

12 Months Ended

Dec. 31, 2018

INVENTORIES:

Schedule of inventories

		At December 31,
(in millions)		2018			2017
Inventory, current:
Metals at average cost:
Finished goods		$	69.6		$	48.8
Work-in-process			256.8			308.0
Ore stockpiles on leach pads			328.0			320.9
Supplies at average cost			378.3			364.2
Total current inventory		$	1,032.7		$	1,041.9
Inventory, long-term:
Ore stockpiles on leach pads		$	1,177.4		$	977.4

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- Definition

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