General Information:
Chemical Formula:
K2Cu++3O(SO4)3 or (K,Na)2(Cu,Zn,Pb)3S3O13
Composition:
(Molecular Weight = 573.02 gm)
Potassium 13.65 % K
Copper 33.27 % Cu
Sulfur 16.79 % S
Oxygen 36.30 % O
Empirical Formula:
K2Cu3O(SO4)3
IMA Status:
Approved IMA
Physical Properties:
Cleavage:
[???] Perfect
Color:
blue green or emerald green.
Density:
3.205
Diaphaniety:
Transparent
Hardness:
2.5 - Finger Nail
Luster:
Vitreous - Silky
Streak:
light green
More details...