General Information:
Chemical Formula:
Bi(Sb+++++,Fe+++)2O7
IMA Status:
Approved IMA 1982
Physical Properties:
Cleavage:
None
Color:
green, greenish brown, yellow, or yellow brown.
Density:
7.38
Diaphaniety:
Translucent to Opaque
Hardness:
4-5 - Fluorite-Apatite
Luster:
Earthy (Dull)
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