Mineralogy Database

Coquimbite Mineral Data

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General Coquimbite Information

Help on Chemical  Formula: Chemical Formula: Fe+++2(SO4)3•9(H2O)
Help on Composition: Composition: Molecular Weight = 562.02 gm
   Iron      19.87 %  Fe   28.41 % Fe2O3
   Hydrogen   3.23 %  H    28.85 % H2O
   Sulfur    17.12 %  S    42.74 % SO3
   Oxygen    59.78 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe3+2(SO4)3•9(H2O)
Help on Environment: Environment: Water soluble efflorescence commonly produced by mine fires or other oxidation with iron sulfide minerals. Dimorphous with paracoquimbite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1841
Help on Locality: Locality: Coquimbo province, Chile. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Coquimbite + Pronunciation Say COQUIMBITE
Help on Synonym: Synonym: ICSD 15182
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