Mineralogy Database

Aluminocopiapite Mineral Data

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General Aluminocopiapite Information

Help on Chemical  Formula: Chemical Formula: Al2/3Fe+++4(SO4)6O(OH)2•20(H2O)
Help on Composition: Composition: Molecular Weight = 1,212.08 gm
   Aluminum   1.48 %  Al    2.80 % Al2O3
   Iron      18.43 %  Fe   26.35 % Fe2O3
   Hydrogen   3.49 %  H    31.21 % H2O
   Sulfur    15.87 %  S    39.63 % SO3
   Oxygen    60.72 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Al0.66Fe3+4(SO4)6(OH)2•20(H2O)
Help on Environment: Environment: Secondary mineral typically formed by the oxidation of pyrite in shales and coal; may be a fumarolic reaction product.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1947
Help on Locality: Locality: "Temple Rock", [probably the Temple Mountain district, Emery Co.,] Utah; at Island Mountain, Trinity Co., and the Champion mine, White Mountains, Mono Co., California, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its content of aluminum and relation to the copiapite group.
Help on Name Pronunciation: Name Pronunciation: Aluminocopiapite Say ALUMINOCOPIAPITE