General Information:
Chemical Formula:
Mn++Mn+++2O4
Composition:
(Molecular Weight = 228.81 gm)
Manganese 72.03 % Mn
Oxygen 27.97 % O
Empirical Formula:
Mn3+3O4
Locality:
Ilmenau and nearby at Orenstock, in Thuringia.
Name Origin:
Named after the German mineralogist, J. F. L. Hausmann (1782-1859).
Physical Properties:
Cleavage:
[001] Perfect
Color:
brownish black or grayish.
Density:
4.7 - 4.84, Average = 4.76
Diaphaniety:
Opaque
Habits:
Massive - Granular - Common texture observed in granite and other igneous rock., Pseudo Octohedral - Crystals show an octohedral outline.,
Hardness:
5.5 - Knife Blade
Luminescence:
None.
Luster:
Sub Metallic
Streak:
brown
More details...