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star sapphire

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noun

a sapphire, cut cabochon, exhibiting asterism in the form of a colorless six-rayed star.

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Origin of star sapphire

First recorded in 1795–1805
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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British Dictionary definitions for star sapphire

star sapphire

noun

a sapphire showing a starlike figure in reflected light because of its crystalline structure
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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