Mineralogy Database

Aluminoferrotschermakite Mineral Data

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General Aluminoferrotschermakite Information

Help on Chemical  Formula: Chemical Formula: [ ]Ca2(Fe2+)3Al2(Si6Al2)O22(OH)2
Help on Composition: Composition: Molecular Weight = 910.14 gm
   Calcium    8.81 %  Ca   12.32 % CaO
   Aluminum  11.86 %  Al   22.41 % Al2O3
   Iron      18.41 %  Fe   23.68 % FeO
   Silicon   18.52 %  Si   39.61 % SiO2
   Hydrogen   0.22 %  H     1.98 % H2O
   Oxygen    42.19 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2Fe2+3Al4Si6O22(OH)2
Help on IMA Status: IMA Status: Approved IMA 1997 (Dana # Added)
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its composition and for Gustav Tschermak von Sessenegg (1836-1927), Austrian mineralogist.