General Information:
Chemical Formula:
Cu5(VO4)2O2·CuCl2
Composition:
(Molecular Weight = 714.06 gm)
Vanadium 14.27 % V
Copper 53.40 % Cu
Chlorine 9.93 % Cl
Oxygen 22.41 % O
Empirical Formula:
Cu6(VO4)2O2Cl2
Environment:
Fumarole deposits. Related to stoiberite.
IMA Status:
Approved IMA (Dana # Added)
Locality:
The Second North Fracture cone of the Main Tolbachik Fracture Eruption, Kamchatka, Russia.
Name Origin:
For V. V. Averiev (1929-1968), Russian volcanologist.
Physical Properties:
Cleavage:
[100] Good
Color:
black.
Density:
3.54 - 3.97, Average = 3.75
Diaphaniety:
Opaque
Habits:
Pseudo Hexagonal - Crystals show a hexagonal outline., Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).,
Hardness:
4 - Fluorite
Luster:
Resinous - Metallic
Streak:
black
More details...