Faustite

General Information:
 Chemical Formula:
(Zn,Cu)Al6(PO4)4(OH)8·4(H2O)
Physical Properties:
 Cleavage:
[???] Indistinct
 Color:
apple green.
 Density:
2.92
 Diaphaniety:
Opaque
 Hardness:
5.5 - Knife Blade
 Luster:
Earthy (Dull)
 Streak:
greenish white
More details...