Turquoise
Turquoise is an opaque, blue-to-green mineral that is a hydrous phosphate of copper and aluminium, with the chemical formula CuAl6(PO4)4(OH)8ยท4H2O. It is rare and valuable in finer grades and has been prized as a gemstone for millennia due to its hue.
Read Full WikiDEFINITIONS
- nounA sky-blue, greenish-blue, or greenish-gray semi-precious gemstone.
- nounA pale greenish-blue colour, like that of the gemstone.
- adjectiveMade of turquoise (the gemstone).
- adjectiveHaving a pale greenish-blue colour.
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