Large turquoise stone feature interspersed with gold plate links and turquoise stones .
Feature necklace
"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)8ยท4H
2O. It is rare and valuable in finer grades and has been prized as a gem and ornamental stone for thousands of years owing to its unique hue."
http://en.wikipedia.org/wiki/Turquoise
