Template:Turquoise

From The Gemology Project
Revision as of 21:22, 23 December 2006 by Gemma (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search
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