Mineralogy Database

Ferroglaucophane Mineral Data

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General Ferroglaucophane Information

Help on Chemical  Formula: Chemical Formula: [ ]Na2(Fe++3Al2)Si8O22(OH)2
Help on Composition: Composition: Molecular Weight = 878.17 gm
   Sodium     5.24 %  Na    7.06 % Na2O
   Aluminum   6.14 %  Al   11.61 % Al2O3
   Iron      19.08 %  Fe   24.54 % FeO
   Silicon   25.59 %  Si   54.74 % SiO2
   Hydrogen   0.23 %  H     2.05 % H2O
   Oxygen    43.73 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na2Fe2+3Al2(Si8O22)(OH)2
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1957
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as per current IMA amphibole nomenclature (Burke and Leake 2004; Can. Mineral., 42, 1881-1883).
Help on Name Pronunciation: Name Pronunciation: Ferroglaucophane + Pronunciation Say FERROGLAUCOPHANE