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3. Inventories (Tables)
3 Months Ended
Mar. 31, 2013
Inventory Disclosure [Abstract]  
Inventories
    March 31, 2013     December 31, 2012  
Antimony Metal   $ 257,286     $ 152,821  
Antimony Oxide     261,431       295,613  
Antimony Concentrate     54,379       46,008  
Antimony Ore     309,790       500,192  
Total antimony     882,886       994,634  
Zeolite     131,846       197,555  
    $ 1,897,618     $ 2,186,823