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Sulfate Minerals

mineral class

“Sulfate Class of Minerals”, “Sulfate Mineral Class”

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The sulfate minerals are a class of minerals that include the sulfate ion (SO42−) within their structure. The sulfate minerals occur commonly in primary evaporite depositional environments, as gangue minerals in hydrothermal veins and as secondary minerals in the oxidizing zone of sulfide mineral deposits. The chromate and manganate minerals have a similar structure and are often included with the sulfates in mineral classification systems. Sulfate minerals include: Anhydrous sulfates Barite BaSO4 Celestite SrSO4 Anglesite PbSO4 Anhydrite CaSO4 Hanksite Na22K(SO4)9(CO3)2Cl Hydroxide and hydrous sulfates Gypsum CaSO4·2H2O Chalcanthite CuSO4·5H2O Kieserite MgSO4·H2O Starkeyite MgSO4·4H2O Hexahydrite MgSO4·6H2O Epsomite MgSO4·7H2O Meridianiite MgSO4·11H2O Melanterite FeSO4·7H2O Antlerite…