Mineralogy Database

Eugsterite Mineral Data

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General Eugsterite Information

Help on Chemical  Formula: Chemical Formula: Na4Ca(SO4)3•2(H2O)
Help on Composition: Composition: Molecular Weight = 456.26 gm
   Sodium    20.16 %  Na   27.17 % Na2O
   Calcium    8.78 %  Ca   12.29 % CaO
   Hydrogen   0.88 %  H     7.90 % H2O
   Sulfur    21.08 %  S    52.64 % SO3
   Oxygen    49.09 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na4Ca(SO4)3•2(H2O)
Help on Environment: Environment: Surface efflorescence on soils.
Help on IMA Status: IMA Status: Approved IMA 1981
Help on Locality: Locality: Sindo and Luanda, near Lake Victoria, Kenya. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Hans P. Eugster (1925-1987), Swiss-American mineralogist, John Hopkins University, awarded the Roebling Medal, 1983.
Help on Name Pronunciation: Name Pronunciation: Eugsterite + Pronunciation Say EUGSTERITE