Mineralogy Database

Arseniosiderite Mineral Data

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General Arseniosiderite Information

Help on Chemical  Formula: Chemical Formula: Ca2Fe+++3(AsO4)3O2•3(H2O)
Help on Composition: Composition: Molecular Weight = 766.50 gm
   Calcium   10.46 %  Ca   14.63 % CaO
   Iron      21.86 %  Fe   31.25 % Fe2O3
   Arsenic   29.32 %  As   44.98 % As2O5
   Hydrogen   0.79 %  H     7.05 % H2O
   Oxygen    37.57 %  O
            ______        ______ 
            100.00 %       97.91 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2Fe3+3(AsO4)3O3•3(H2O)
Help on Environment: Environment: Occurs as a rare secondary mineral formed by the oxidation of earlier arsenic-bearing minerals, typically scorodite or arsenopyrite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1842
Help on Locality: Locality: From Romaneche, Saone-et-Loire, France. At Huttenberg, Carinthia, Austria. In Germany, at Schneeberg, Saxony, and at Wittichen and Neubulach, Black Forest. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For essential "arsenic" in the composition, and "sideros," Greek for "iron."
Help on Name Pronunciation: Name Pronunciation: Arseniosiderite + Pronunciation Say ARSENIOSIDERITE