General Information:
Chemical Formula:
Mn+++O(OH)
Composition:
(Molecular Weight = 87.94 gm)
Manganese 62.47 % Mn
Hydrogen 1.15 % H
Oxygen 36.39 % O
Empirical Formula:
Mn3+O(OH)
Physical Properties:
Cleavage:
[010] Perfect, [100] Distinct
Color:
blue black.
Density:
4.144
Diaphaniety:
Opaque
Hardness:
5.5 - Knife Blade
Luster:
Adamantine - Metallic
Streak:
dark brown
More details...