General Information:
Chemical Formula:
Pb5(VO4)3Cl
Composition:
(Molecular Weight = 1,416.27 gm)
Vanadium 10.79 % V
Lead 73.15 % Pb
Chlorine 2.50 % Cl
Oxygen 13.56 % O
Empirical Formula:
Pb5(VO4)3Cl
Name Origin:
Named for its vanadium content.
Physical Properties:
Cleavage:
None
Color:
brown, brownish yellow, brown red, colorless, or yellow.
Density:
6.8 - 7.1, Average = 6.94
Diaphaniety:
Subtranslucent to opaque
Habits:
Globular - Spherical, or nearly so, rounded forms (e.g. wavellite)., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline)., Nodular - Tuberose forms having irregular prot uberances over the surface.
Hardness:
3.5-4 - Copper Penny-Flourite
Luminescence:
None.
Luster:
Adamantine
Streak:
brownish yellow
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