General Information:
Chemical Formula:
MnO
Composition:
(Molecular Weight = 70.94 gm)
Manganese 77.45 % Mn
Oxygen 22.55 % O
Empirical Formula:
Mn2+O
Environment:
Metamorphosed manganese deposits.
Locality:
Franklin, New Jersey, USA.
Physical Properties:
Cleavage:
[001] Perfect, [010] Perfect, [100] Perfect
Color:
green or greenish black.
Density:
5.18
Diaphaniety:
Transparent to translucent to opaque
Habits:
Massive - Granular - Common texture observed in granite and other igneous rock., ,
Hardness:
5-6 - Between Apatite and Orthoclase
Luminescence:
Non-fluorescent.
Luster:
Adamantine
Streak:
brown
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