Turquoise

Turquoise is a type of combination of phosphates of copper and aluminum in hydrous structure, and the entire chemical or rather, mineral formula is quite long and complex with CuAl6(PO4)4(OH)8ยท4H2O as the scientifically given formula. At a glance, this means turquoise isn’t very hard on the Mohs scale, because long complex combinations of hydrates denote …

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