Zincrosasite

General Information:
 Chemical Formula:
(Zn,Cu)2(CO3)(OH)2
 Composition:
(Molecular Weight = 223.42 gm)
Zinc 36.58 % Zn
Copper 21.33 % Cu
Hydrogen 0.90 % H 
Carbon 5.38 % C 
Oxygen 35.81 % O 
 Empirical Formula:
Zn1.25Cu0.75(CO3)(OH)2
Physical Properties:
 Cleavage:
[???] Good, [???] Good
 Color:
white, white green, or light green.
 Density:
4 - 4.2, Average = 4.09
 Diaphaniety:
Transparent to Translucent
 Hardness:
4.5 - Between Fluorite and Apatite
 Luster:
Subadamantine
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