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 %
CuSulfur 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
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