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nephrite

[nef-rahyt] /ˈnɛf raɪt/
noun
1.
Mineralogy. a compact or fibrous variety of actinolite, varying from whitish to dark green: a form of jade.
Origin of nephrite
1785-1795
1785-95; < German Nephrit. See nephr-, -ite1
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Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for nephrite

nephrite

/ˈnɛfraɪt/
noun
1.
a tough fibrous amphibole mineral: a variety of jade consisting of calcium magnesium silicate in monoclinic crystalline form. Formula: Ca2Mg5Si8O22(OH)2 Also called kidney stone
Word Origin
C18: via German Nephrit from Greek nephrós kidney, so called because it was thought to be beneficial in kidney disorders
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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nephrite in Science
nephrite
  (něf'rīt')   
A green to blue variety of jade. Nephrite is an amphibole and is the least precious form of jade. Chemical formula: Ca2(Mg,Fe)5Si8O22(OH)2.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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