Mineralogy Database

Phaunouxite Mineral Data

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General Phaunouxite Information

Help on Chemical  Formula: Chemical Formula: Ca3(AsO4)•11(H2O)
Help on Composition: Composition: Molecular Weight = 596.24 gm
   Calcium   20.17 %  Ca   28.22 % CaO
   Arsenic   25.13 %  As   38.55 % As2O5
   Hydrogen   3.72 %  H    33.24 % H2O
   Oxygen    50.98 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca3(AsO4)2•11(H2O)
Help on Environment: Environment: Rare post-mine low-temperature reaction product of carbonate gangue with arsenical solutions
Help on IMA Status: IMA Status: Approved IMA 1982
Help on Locality: Locality: Gabe-Gottes mine, Rauenthal, near Sainte-Marie-aux-Mines, Haut-Rhin, France. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from Phaunoux, the French name for the Rauenthal Valley, France, within which the mineral was first found.
Help on Name Pronunciation: Name Pronunciation: Phaunouxite + Pronunciation Say PHAUNOUXITE
Help on Synonym: Synonym: ICSD 36046
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