Turquoise

Turquoise is an opaque, blue-to-green mineral that is a hydrous phosphate of copper and aluminium, with the chemical formula CuAl6(PO 4)4(OH)8·4H 2O according to wikipedia. But this picture is of plastic.

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  • Nikon D5200
  • 1/50
  • f/5.6
  • 78mm
  • 200

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