December Birthstone - Turquoise |
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| Turquoise fact file | ||
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Crystal Structure: minute triclinic crystals Chemical Composition: hydrous phosphate of aluminum and copper CuO.3Al2O3.2P2O5.9H2O Hardness: 5-6 MOHS |
Refractive Index: 1.61 to 1.65 Colors: Opaque, dark to light blue, different ranges of green | |
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Those born in December have the maximum choice. They can choose from three december birthstones - Turquoise, Lapis Lazuli, Blue Zircon NameThe term turquoise is probably derived from the French turquois (Turkish stone). The name appears both with a final "e" (turquoise) and without the final "e" (turquois).Related Pages:
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