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About Us
Argentite: Ag2S for production of silver
Barite: BaSO4
Bauxite Al2O3 for production of aluminium
Beryl: Be3Al2(SiO3)6
Bornite: Cu5FeS4
Cassiterite: SnO2
Chalcocite: Cu2S for production of copper
Chalcopyrite: CuFeS2
Chromite: (Fe, Mg)Cr2O4 for production of chromium
Cinnabar: HgS for production of mercury
Cobaltite: (Co, Fe)AsS
Columbite-Tantalite or Coltan: (Fe, Mn)(Nb, Ta)2O6
Galena: PbS
Gold: Au, typically associated with quartz or as placer deposits
Hematite: ...
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