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NONSILICATES

By Sue Williams,2014-04-09 21:49
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Sulfides Sulfides include the majority of the ore minerals. They have the general formula: X m Z n Where X = metal and Z is S, As, or Te. One cannot make generalizations about their structures overall. The sulfides that you need to know are pyrite, marcasite, pyrrhotite, sphalerite, galena, chalcopyrite and arsenopyrite. Pyrite and Marcasite: (FeS 2 ..
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