General Information:
Chemical Formula:
(Zn,Ni,Cu)8Al8V2Si5O35·27(H2O) (?)
Composition:
(Molecular Weight = 2,003.89 gm)
Aluminum 10.77 % Al
Vanadium 5.08 % V
Zinc 9.79 % Zn
Silicon 7.01 % Si
Copper 6.34 % Cu
Nickel 8.79 % Ni
Hydrogen 2.72 % H
Oxygen 49.50 % O
Empirical Formula:
Zn3Ni3Cu2Al8V5+2Si5O35·27(H2O)
Environment:
Found in fractures in a bituminous schists.
Locality:
Kurumsak, near Dzhambul, Karatau Mountanins, Kazakhstan.
Name Origin:
Named for the locality.
Physical Properties:
Color:
greenish yellow or bright yellow.
Density:
4.03
Habits:
Massive - Fibrous - Distinctly fibrous fine-grained forms., ,
Luster:
Vitreous - Silky
More details...