Mineralogy Database

Anandite Mineral Data

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General Anandite Information

Help on Chemical  Formula: Chemical Formula: (Ba,K)(Fe++,Mg)3(Si,Al,Fe)4O10(S,OH)2
Help on Composition: Composition: Molecular Weight = 593.15 gm
   Potassium   1.65 %  K     1.99 % K2O
   Barium     17.36 %  Ba   19.39 % BaO
   Magnesium   3.07 %  Mg    5.10 % MgO
   Aluminum    3.18 %  Al    6.02 % Al2O3
   Iron       24.01 %  Fe   27.25 % FeO /  4.04 % Fe2O3
   Silicon    14.20 %  Si   30.39 % SiO2
   Hydrogen    0.08 %  H     0.76 % H2O
   Sulfur      8.11 %  S     8.11 % S2-
                -   %  S    -4.05 % -O=S 
   Oxygen     28.32 %  O
             ______        ______ 
             100.00 %       98.99 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ba0.75K0.25Fe2+2.25Mg0.75Si3Al0.7Fe3+0.3O10S1.5(OH)0.5
Help on Environment: Environment: Found in banded iron ores.
Help on IMA Status: IMA Status: Approved IMA 1967
Help on Locality: Locality: Wilagedera prospect, North Western Province, Sri Lanka. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Ananda Kentish Coomaraswamy (1877-1947), first director of the Mineral Survey of Ceylon (Sri Lanka).
Help on Name Pronunciation: Name Pronunciation: Anandite Say ANANDITE