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monazite

[mon-uh-zahyt] /ˈmɒn əˌzaɪt/
noun
1.
a reddish- or yellowish-brown mineral, a phosphate of cerium and lanthanum, (Ce,La)PO 4 : the principal ore of thorium.
Origin of monazite
1830-1840
1830-40; < German Monazit, equivalent to monaz- (< Greek monázein to be alone; see mon-) + -it -ite1
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Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for monazite

monazite

/ˈmɒnəˌzaɪt/
noun
1.
a yellow to reddish-brown mineral consisting of a phosphate of thorium, cerium, and lanthanum in monoclinic crystalline form
Word Origin
C19: from German, from Greek monazein to live alone, so called because of its rarity
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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monazite in Science
monazite
  (mŏn'ə-zīt')   
A yellow or reddish-brown monoclinic mineral that is a principal ore of several lanthanide (rare-earth) elements. It occurs as tabular crystals in pegmatites, granites, and metamorphic rocks, as well as in sand. Chemical formula: (Ce, La, Nd, Th)PO4.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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