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ruby spinel

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ruby spinel

–noun Mineralogy.
a deep red, transparent variety of spinel, used as a gem.
Also called spinel ruby.


Origin:
1830–40
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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ruby spinel

noun
a spinel used as a gemstone (usually dark red) [syn: spinel ruby
WordNet® 3.0, © 2006 by Princeton University.
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