Mineralogy Database

Metahohmannite Mineral Data

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General Metahohmannite Information

Help on Chemical  Formula: Chemical Formula: Fe+++2[O(SO4)2]•4(H2O)
Help on Composition: Composition: Molecular Weight = 391.88 gm
   Iron      28.50 %  Fe   40.75 % Fe2O3
   Hydrogen   2.06 %  H    18.39 % H2O
   Sulfur    16.37 %  S    40.86 % SO3
   Oxygen    53.08 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe3+2(O)(SO4)2•4(H2O)
Help on Environment: Environment: Formed rapidly from the dehydration of hohmannite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1938
Help on Locality: Locality: Chuquicamata, Quetena, and Alcaparrosa, Chile. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the similarity to hohmannite, with a lower state of hydration.
Help on Name Pronunciation: Name Pronunciation: Metahohmannite + Pronunciation Say METAHOHMANNITE