General Information:
Chemical Formula:
Pb(W,Fe+++)2(O,OH)7
IMA Status:
Approved IMA 1979
Physical Properties:
Cleavage:
None
Color:
brown red or red.
Density:
6.04
Diaphaniety:
Transparent
Hardness:
3 - Calcite
Luster:
Resinous
Streak:
yellow
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