Mineralogy Database

Manganlotharmeyerite Mineral Data

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General Manganlotharmeyerite Information

Help on Chemical  Formula: Chemical Formula: Ca(Mn+++,Mg,)2(AsO4)2(OH,H2O)2
Help on Composition: Composition: Molecular Weight = 414.80 gm
   Calcium     8.70 %  Ca   12.17 % CaO
   Magnesium   2.34 %  Mg    3.89 % MgO
   Manganese  13.24 %  Mn   19.03 % Mn2O3
   Arsenic    36.12 %  As   55.41 % As2O5
   Hydrogen    1.02 %  H     9.12 % H2O
   Oxygen     38.57 %  O
             ______        ______ 
             100.00 %       99.61 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca0.92(Mn3+0.5)2(Mg0.2)2(As)O10H4.2
Help on Environment: Environment: In carbonate-hosted manganese ore.
Help on IMA Status: IMA Status: Approved IMA 2002 (Dana # Added)
Help on Locality: Locality: Starlera Fe-Mn deposit, Val Ferrera, Eastern Alps, Switzerland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the Mn-dominant lotharmeyerite.
Help on Synonym: Synonym: IMA2001-026