Glittering
stones >> Semi
Precious Stones >> Chrysoprase
Semi Precious Stone Chrysoprase
Chrysoprase (also Chrysoprase) is a gemstone
variety of chalcedony, (fibrous form of quartz) which contains small quantities of nickel. Its color is
normally apple-green, but varies from deep green. It is cryptocrystalline
that means that it is composed of crystals so
fine that they may not be seen as distinct particles under normal magnification.
This sets it apart from rock crystal, amethyst, citrine,
and also the other varieties of crystalline quartz which
are basically transparent and also formed from easily recognized six-sided
crystals. Other members of the cryptocrystalline quartz family include
agate, carnelian, and also a form of onyx. Unlike many
other non-transparent members of the quartz family, it is the color is
Chrysoprase, rather than any other pattern of markings,
that makes it desirable. The word Chrysoprase comes from the Greek chrysos
meaning 'gold' and parson, meaning 'leek'.
 |
Historical Facts of Chrysoprase
| Refractive Index |
1.544 - 1.553 |
| Chemical Composition |
SIO2 |
| Hardness |
6 - 8 |
| Density |
2.65 - 2.66 |
| Crystal Group |
Hexagonal |
| Ocurrence |
Queensland, Western Australia, Germany, Poland, Russia, Arizona, California, and also Brazil |
|
Gems Chrysoprase Jewelry
|
|
