Turquoise
CuAl6(PO4)4(OH)8 · 4H2O
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Turquoise is a hydrated copper aluminum phosphate that has been prized as a gemstone for thousands of years. The finest specimens exhibit an even sky-blue color. It forms in arid regions through the interaction of copper-bearing solutions with aluminum-rich rocks.
| النظام البلوري | Triclinic |
| صنف المعدن | 08 Phosphates, Arsenates, and Vanadates |
| صلادة موس | 5.0-6.0 |
| الكثافة النوعية | 2.60-2.80 |
| اللون | Sky blue, blue-green, green |
| اللمعان | Waxy |
| لون الخط | White to pale green |
| الانفصام | None |
| الكسر | Conchoidal |
| الشفافية | Translucent |
| الشكل البلوري | Massive, nodular, veins |
صلادة موس
Mohs Hardness: 5,0 – 6,0
1 Soft10 Hard
النظام البلوري
TriclinicExplore on Science FYI
Frequently Asked Questions
What is the hardness of Turquoise?
Turquoise has a Mohs hardness of 5.0-6.0.
What crystal system does Turquoise belong to?
Turquoise crystallizes in the Triclinic crystal system.
What color is Turquoise?
Turquoise is typically Sky blue, blue-green, green.
What type of luster does Turquoise have?
Turquoise exhibits a Waxy luster.
What is the chemical formula of Turquoise?
The chemical formula of Turquoise is CuAl6(PO4)4(OH)8 · 4H2O.