General Information:
Chemical Formula:
Cu++3Fe+++4(VO4)6
Composition:
(Molecular Weight = 1,103.66 gm)
Vanadium 27.69 % V
Iron 20.24 % Fe
Copper 17.27 % Cu
Oxygen 34.79 % O
Empirical Formula:
Cu3Fe3+4(VO4)6
IMA Status:
Approved IMA
Physical Properties:
Cleavage:
[???] Good
Color:
black.
Diaphaniety:
Opaque
Luster:
Metallic
Streak:
dark gray
More details...