Template:Turquoise

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Turquoise
Chemical composition CuAl6(PO4)4(OH)8.5H2O
Crystal system Triclinic
Habit Botryoidal, massive, microcrystalline to granular
Fracture Conchoidal
Hardness 5.0 - 6.0
Refractive index 1.610-1.650
Specific gravity 2.30-2.90
Lustre Waxy