set 4-14 peridot

set 4-14 peridot
Originally uploaded by mitsuki-chan.

Peridot is the gemstone variety of Olivin. It is one of the few gemstones which exist only in one color: green. Its chemical formula is iron-magnesium-silicate. The intensity of its green color depends on the amount of iron. Peridot is not especially hard – only achieves about 6.5 to 7 on the Mohs' scale, but makes a great gemstone especially since its bright green color is maintained even in artificial light.