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5. Inventories (Tables)
12 Months Ended
Dec. 31, 2019
Inventory Disclosure [Abstract]  
Inventories
    2019     2018  
Antimony Metal   $ -     $ 8,127  
Antimony Oxide     204,550       255,782  
Antimony Concentrates     5,654       2,214  
Antimony Ore     151,841       257,067  
     Total antimony     362,045       523,190  
Zeolite     264,199       232,071  
    $ 626,244     $ 755,261