mineral
Turquoise
Copper Aluminum Phosphate (CuAl6(PO4)4(OH)8·4H2O)
AI-generated identification · may be incorrectHardness of 5-6 on the Mohs scale, characteristic robin's egg blue to greenish-blue color, waxy to sub-vitreous luster, and triclinic crystal system.
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Physical properties
Hardness of 5-6 on the Mohs scale, characteristic robin's egg blue to greenish-blue color, waxy to sub-vitreous luster, and triclinic crystal system.
Formation & geological history
Formed by the weathering and oxidation of pre-existing copper-bearing minerals in arid climates and hydrothermal environments over millions of years.
Uses & applications
Extensively used as a gemstone in jewelry, ornamental carvings, and historical talismans.
Geological facts
Turquoise is one of the world's most ancient gem materials, prized by ancient civilizations like the Egyptians and Native Americans for trade and sacred items.
Field identification & locations
Identified by its distinct turquoise-blue or greenish color and often webbed matrix; found in arid regions such as the southwestern United States, Iran, and China.
