General Information:
Chemical Formula:
V++++4V+++++2O13·8(H2O) (?)
Composition:
(Molecular Weight = 657.76 gm)
Vanadium 46.47 % V
Hydrogen 2.45 % H
Oxygen 51.08 % O
Empirical Formula:
V4+4V5+2O13·8(H2O)
Environment:
Sedimetary uranium-vanadium deposits.
Locality:
Paradox Valley, Montrose Co., Colorado.
Name Origin:
Named after its composition of vanadium and oxygen (oxide).
Physical Properties:
Color:
brownish black or black.
Diaphaniety:
Opaque
Habits:
Disseminated - Occurs in small, distinct particles dispersed in matrix., Crystalline - Fine - Occurs as well-formed fine sized crystals.,
Luminescence:
Non-fluorescent.
Luster:
Metallic
Streak:
brown black
More details...