General Information:
Chemical Formula:
CaV++++2V+++++2O10·5(H2O)
Composition:
(Molecular Weight = 493.91 gm)
Calcium 8.11 % Ca
Vanadium 41.26 % V
Hydrogen 2.04 % H
Oxygen 48.59 % O
Empirical Formula:
CaV4+2V5+2O10·5(H2O)
Physical Properties:
Cleavage:
[010] Perfect
Color:
black.
Density:
2.55
Diaphaniety:
Opaque
Hardness:
2.5 - Finger Nail
Luster:
Sub Metallic
Streak:
dark red brown
More details...