General Information:
Chemical Formula:
Pb2(Mn++,Mg)Fe+++16027
IMA Status:
Approved IMA
Physical Properties:
Cleavage:
[001] Perfect
Color:
black.
Density:
5.76
Diaphaniety:
Opaque
Hardness:
6 - Orthoclase
Luster:
Sub Metallic
Streak:
brownish black
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