General Information:
Chemical Formula:
(Mn++,Fe++)(V+++,Cr+++)2O4
Composition:
(Molecular Weight = 221.57 gm)
Manganese 18.60 % Mn
Vanadium 34.49 % V
Chromium 11.73 % Cr
Iron 6.30 % Fe
Oxygen 28.88 % O
Empirical Formula:
Mn2+0.75Fe2+0.25V3+1.5Cr0.5O4
IMA Status:
Approved IMA 1980
Physical Properties:
Color:
brown gray or grayish black.
Density:
4.64
Diaphaniety:
Opaque
Hardness:
6.5 - Pyrite
Luster:
Metallic
More details...