Silver drop style cones holding large size genuine turquoise stone earrings .
"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
"Tibetan silver is used primarily in jewelry components, and is similar to pewter - an alloy of copper, and sometimes tin or nickel, with a small percentage of pure silver. Its overall appearance is of aged silver, but it can be polished to provide highlights on complex castings. Today, the nickel content is reduced or absent, due to common allergies to this metal.
The related term 'Nepalese silver', however, seems to have held on to the higher silver content and association with quality metalsmithing.
Currently, jewelry, beads and castings described as 'Tibetan Silver' tend to be a base iron 'cheese metal' casting, overlaid with this pewter and silver plating. "
http://en.wikipedia.org/wiki/Tibet_silver