Mineralogy Database

Manganarsite Mineral Data

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General Manganarsite Information

Help on Chemical Formula: Chemical Formula: Mn++3As+++204(OH)4
Help on Composition: Composition: Molecular Weight = 446.68 gm
   Manganese  36.90 %  Mn   47.64 % MnO
   Arsenic    33.55 %  As   44.29 % As2O3
   Hydrogen    0.90 %  H     8.07 % H2O
   Oxygen     28.65 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+3As2O4(OH)4
Help on IMA Status: IMA Status: Approved IMA 1986
Help on Locality: Locality: Langban, Varmland, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the composition (Manganese, Arsenic).
Help on Name Pronunciation: Name Pronunciation: Manganarsite + Pronunciation Say MANGANARSITE