Mineralogy Database

Roselite-beta Mineral Data

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General Roselite-beta Information

Help on Chemical  Formula: Chemical Formula: Ca2(Co,Mg)(AsO4)2•2(H2O)
Help on Composition: Composition: Molecular Weight = 444.30 gm
   Calcium    18.04 %  Ca   25.24 % CaO
   Magnesium   1.37 %  Mg    2.27 % MgO
   Cobalt      9.95 %  Co   12.65 % CoO
   Arsenic    33.73 %  As   51.73 % As2O5
   Hydrogen    0.91 %  H     8.11 % H2O
   Oxygen     36.01 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2Co0.75Mg0.25(AsO4)2•2(H2O)
Help on Environment: Environment: Secondary arsenate mineral.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1955
Help on Locality: Locality: Schneeberg, Saxony, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its dimorphic relationship with roselite.
Help on Name Pronunciation: Name Pronunciation: Roselite-beta Say ROSELITE-BETA
Help on Synonym: Synonym: Beta-roselite