Mineralogy Database

Braunite-II Mineral Data

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General Braunite-II Information

Help on Chemical  Formula: Chemical Formula: Mn++Mn+++6SiO12
Help on Composition: Composition: Molecular Weight = 604.64 gm
   Manganese  63.60 %  Mn   11.73 % MnO / 78.33 % Mn2O3
   Silicon     4.64 %  Si    9.94 % SiO2
   Oxygen     31.75 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+Mn3+6SiO12
Help on Environment: Environment: Manganese oxide mineral deposits. Metamorphic and secondary weathering environments
Help on IMA Status: IMA Status: Not Approved IMA 1967
Help on Locality: Locality: Metamorphic, hydrothermal, and sedimentary rocks. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after K. Braun (1790-1872) from Gotha, Germany.
Help on Name Pronunciation: Name Pronunciation: Braunite-II Say BRAUNITE-II