Keyite

General Information:
 Chemical Formula:
Cu++3(Zn,Cu)4Cd2(AsO4)6·2(H2O)
 IMA Status:
Approved IMA 1977
Physical Properties:
 Cleavage:
[001] Good
 Color:
azure.
 Density:
4.95
 Hardness:
3.5-4 - Copper Penny-Flourite
 Streak:
light blue
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