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nephrite |
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nephrite: see jade jade, common name for either of two minerals used as gems. The rarer variety of jade is jadeite, a sodium aluminum silicate, NaAl(SiO3)2, usually white or green in color; the green variety is the more valuable. ..... Click the link for more information. . nephriteGem-quality, usually green silicate mineral in the tremolite-actinolite-ferrotremolite series of amphiboles. It is the less prized but more common of the two types of jade and may be distinguished from jadeite by its splintery fracture and oily lustre. Nephrite occurs in low-grade (formed under low-temperature, low-pressure conditions), regionally metamorphosed rocks. Important deposits occur in China, Siberia, New Zealand, Switzerland, Alaska, and Wyoming. nephrite [ne′frīt] (mineralogy) An exceptionally tough, compact, fine-grained, greenish or bluish amphibole constituting the less valuable type of jade; formerly worn as a remedy for kidney diseases. Also known as greenstone; kidney stone. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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He also noted a jade obelisk, more than 8 feet tall, carved by a single boulder of deep green Yukon nephrite in Canada. Also included in the exhibition are the Trans-Siberian Railway Egg, with its tiny working locomotive, made of gold and platinum, as well as the Alexander Palace Egg, made of diamond encrusted Nephrite, adorned with five miniature portraits of the Tsar's children, and containing a perfect replica of the famed palace, barely three inches across. It is additionally a major supplier of Nephrite Jade. |
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