Mineralogy Database

Ribbeite Mineral Data

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General Ribbeite Information

Help on Chemical Formula: Chemical Formula: (Mn++,Mg)5(SiO4)2(OH)2
Help on Composition: Composition: Molecular Weight = 454.58 gm
   Magnesium   6.68 %  Mg   11.08 % MgO
   Manganese  45.32 %  Mn   58.52 % MnO
   Silicon    12.36 %  Si   26.44 % SiO2
   Hydrogen    0.44 %  H     3.96 % H2O
   Oxygen     35.20 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+3.75Mg1.25(SiO4)2(OH)2
Help on Environment: Environment: Polymorph of allegehanyite.
Help on IMA Status: IMA Status: Approved IMA 1987
Help on Locality: Locality: E15-11 South stope, 11 level, 1241 elevation, in the Asis West sector of the Kombat mine, located 37 km east of Otavi and 49 km south of Tsumeb in the north-central part of Namibia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Paul Ribbe of Virginia Polytechnical Institute and State University.
Help on Name Pronunciation: Name Pronunciation: Ribbeite Say RIBBEITE
Help on Synonym: Synonym: ICSD 66646
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