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amazonite

[am-uh-zuh-nahyt]
noun Mineralogy.
  1. a green feldspar, a variety of microcline, used as an ornamental material.
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Origin of amazonite

1595–1605; Amazon (river) + -ite1
Also called Amazon stone.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for amazonite

amazonite

noun
  1. a green variety of microcline used as a gemstone. Formula: KAlSi 3 O 8Also called: Amazon stone
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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