Mineralogy Database

Manganochromite Mineral Data

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General Manganochromite Information

Help on Chemical  Formula: Chemical Formula: (Mn,Fe++)(Cr,V)2O4
Help on Composition: Composition: Molecular Weight = 225.53 gm
   Manganese  19.49 %  Mn   25.16 % MnO
   Vanadium    0.90 %  V     1.33 % V2O3
   Chromium   43.80 %  Cr   64.02 % Cr2O3
   Iron        7.43 %  Fe    9.56 % FeO
   Oxygen     28.38 %  O
             ______        ______ 
             100.00 %      100.07 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+0.8Fe2+0.3Cr1.9V3+0.04O4
Help on Environment: Environment: Extensional gash vein in a metamorphosed hydrothermal pyrite deposit.
Help on IMA Status: IMA Status: Approved IMA 1978
Help on Locality: Locality: Nairne deposit, near Brukunga, 47 km east of Adelaide, South Australia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its MANGANese in the composition and relationship to magnesiochromite.
Help on Name Pronunciation: Name Pronunciation: Manganochromite Say MANGANOCHROMITE