General Information:
Chemical Formula:
PbFe++(AsO4)(OH)
Composition:
(Molecular Weight = 418.97 gm)
Iron 13.33 % Fe
Arsenic 17.88 % As
Hydrogen 0.24 % H
Lead 49.45 % Pb
Oxygen 19.09 % O
Empirical Formula:
PbFe2+(AsO4)(OH)
IMA Status:
Approved IMA 1967
Physical Properties:
Cleavage:
None
Color:
greenish brown or black.
Density:
6.67
Diaphaniety:
Transparent to Opaque
Hardness:
3.5 - Copper Penny
Luster:
Adamantine
Streak:
light brown
More details...