General Information:
Chemical Formula:
Ba(Mn,Fe++)2Fe+++2(PO4)3(OH)3
IMA Status:
Approved IMA 1977
Physical Properties:
Cleavage:
[100] Perfect
Color:
brownish black, greenish brown, dark brown, or black.
Density:
3.32
Diaphaniety:
Transparent to Translucent
Hardness:
5 - Apatite
Luster:
Vitreous - Adamantine
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