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diopside

[dahy-op-sahyd, -sid] /daɪˈɒp saɪd, -sɪd/
noun, Mineralogy.
1.
a monoclinic pyroxene mineral, calcium magnesium silicate, CaMg(SiO 3) 2 , occurring in various colors, usually in crystals.
Origin of diopside
1800-1810
1800-10; di-3 + Greek óps(is) appearance + -ide
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for diopside

diopside

/daɪˈɒpsaɪd; -sɪd/
noun
1.
a colourless or pale-green pyroxene mineral consisting of calcium magnesium silicate in monoclinic crystalline form: used as a gemstone. Formula: CaMgSi2O6
Word Origin
C19: from di-² + Greek opsis sight, appearance + -ide
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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diopside in Science
diopside
  (dī-ŏp'sīd')   
A light green, monoclinic variety of pyroxene, used as a gemstone and as a refractory material. Chemical formula: CaMgSi2O6.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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