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3. Inventories (Tables)
3 Months Ended
Mar. 31, 2015
Inventory Disclosure [Abstract]  
Inventories
   

March 31, 

2015

   

December 31, 2014

 
Antimony Metal   $ 86,032     $ 40,352  
Antimony Oxide     704,315       718,982  
Antimony Concentrates     938,133       33,545  
Antimony Ore     486,242       447,262  
     Total antimony     2,214,722       1,240,141  
Zeolite     92,442       193,398  
    $ 2,307,164     $ 1,433,539