Difference between revisions of "Template:Turquoise"
From The Gemology Project
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| Chemical composition || CuAl<sub>6</sub>(PO<sub>4</sub>)<sub>4</sub>(OH)<sub>8</sub>.5H<sub>2</sub>O | | Chemical composition || CuAl<sub>6</sub>(PO<sub>4</sub>)<sub>4</sub>(OH)<sub>8</sub>.5H<sub>2</sub>O | ||
|- | |- | ||
− | | Crystal system || | + | | Crystal system || Triclinic |
|- | |- | ||
− | | Habit || | + | | Habit || Botryoidal, massive, microcrystalline to granular |
|- | |- | ||
− | | Fracture || | + | | Fracture || Conchoidal |
|- | |- | ||
| Hardness || 5.0 - 6.0 | | Hardness || 5.0 - 6.0 | ||
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| Specific gravity || 2.30-2.90 | | Specific gravity || 2.30-2.90 | ||
|- | |- | ||
− | | Lustre || | + | | Lustre || Waxy |
|} | |} |
Latest revision as of 21:22, 23 December 2006
Turquoise | |
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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 |