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Metal and Other Inventories
6 Months Ended
Jun. 30, 2011
Metal and Other Inventories [Abstract]  
METAL AND OTHER INVENTORIES
NOTE 7 — METAL AND OTHER INVENTORIES
     Inventories consist of the following (in thousands):
                 
    June 30,     December 31,  
    2011     2010  
Concentrate and doré inventory
  $ 103,642     $ 81,059  
Supplies
    51,998       37,281  
 
           
Metal and other inventory
  $ 155,640     $ 118,340