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Inventories (Details) - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Inventories $ 566,711 $ 650,213
Antimony Oxide    
Inventories 216,020 67,377
Antimony Metal    
Inventories 0 268,100
Zeolite    
Inventories 165,568 218,856
Antimony Ore    
Inventories 185,123 95,880
Antimony    
Inventories $ 401,143 $ 431,357