Mineralogy Database

Ferro-aluminotschermakite Mineral Data

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General Ferro-aluminotschermakite Information

Help on Chemical  Formula: Chemical Formula: Ca2Fe++3Al2(Si7Al)O22(OH)2
Help on Composition: Composition: Molecular Weight = 911.24 gm
   Calcium    8.80 %  Ca   12.31 % CaO
   Aluminum   8.88 %  Al   16.78 % Al2O3
   Iron      18.39 %  Fe   23.65 % FeO
   Silicon   21.57 %  Si   46.16 % SiO2
   Hydrogen   0.22 %  H     1.98 % H2O
   Oxygen    42.14 %  O
            ______        ______ 
            100.00 %      100.88 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca2Fe2+3Al3Si7O22(OH)2
Help on IMA Status: IMA Status: Not Approved IMA 1997
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.