Stock Photo - Turquoise, Tonapah, Nevada, Turquoise is an opaque, blue-to-green mineral that is a hydrated phosphate of copper and aluminium, with the chemical formula CuAl6(PO4)4(OH)8·4H2O

Stock Photo: Turquoise, Tonapah, Nevada, Turquoise is an opaque, blue-to-green mineral that is a hydrated phosphate of copper and aluminium.

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