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star sapphire

a sapphire, cut cabochon, exhibiting asterism in the form of a colorless six-rayed star.
Origin of star sapphire
1795-1805 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for star-sapphire
Historical Examples
  • Perhaps your hands would look wrong with a ring, unless I could find a star-sapphire set in silver.

    Sinister Street, vol. 1 Compton Mackenzie
  • Was I making game of you when you discovered me looking out of your star-sapphire yesterday?

    Lilith George MacDonald
  • The typical asteria is the star-sapphire, generally a bluish-grey corundum, milky or opalescent, with a star of six rays.

  • Like the inside of a pearl; like the inside of a star-sapphire; like a rainbow at twilight.

    A Northern Countryside Rosalind Richards
  • At other times the star-sapphire which Burton carried on his person proved a valuable auxiliary—and convinced where words failed.

British Dictionary definitions for star-sapphire

star sapphire

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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