Glass is an amorphous form of silica (with various percentages of additives) that has been used as a gemstone for millennia.
Clear glass for gems is man-made, formed by fusing silica sand with various additives at temperatures of 1000+°C.Glass-colored-Gemstones-China-Wholesale-and-Suppliers
Natural glasses include obsidian, which is is a rapidly quenched lava, and closer to pure silica glasses, such as libyan desert glass.A unique man-made glass, although not often used in gems for obious reasons, is trinitite, a mildly radioactive glass formed from the fusing of sand by the detonation of the first atomic bomb in 1945.
Common glass has poor dispersion and refractive index, however it is very cheap to manufacture and is known in jewellery terms as paste - often backed with metal foils to increase brilliance.
Hardened Gemstones is the best stimulant for the CZ Stones, which the colors are beautiful, but are cheap for the Jewelry designs.
At Fu Rong Gems, you can Buy high quality of Loose Hardened Glass Gemstones at Wholesale Direct Factory prices from the Real China Professional Manufacturers and Suppliers.
Glass gemstones comes in all the basic shapes like Round, Oval, Pear, Octagon, Square, Heart, Marquise and etc.
We can supply glass stones in about 200 colors.
If you are looking for a cheap gemstone (even cheaper than CZ and Synthetic stones), - then you should choose these Glass gemstones for your designs.
They are very light in weight and their hardness is 6-7.
Most of the colors in glass stones have same prices. We can also provide glass crystals with foiled back.