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sardonyx

[sahr-don-iks, sahr-dn-] /sɑrˈdɒn ɪks, ˈsɑr dn-/
noun
1.
a chalcedony that is used for cameos and has sard and chalcedony of another color, usually white, arranged in straight parallel bands.
Origin
1300-1350
1300-50; Middle English < Latin < Greek sardónyx; see sard, onyx
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for sardonyx
  • sardonyx is a form of onyx with layers of reddish-brown and white banding.
British Dictionary definitions for sardonyx

sardonyx

/ˈsɑːdənɪks/
noun
1.
a variety of chalcedony with alternating reddish-brown and white parallel bands, used as a gemstone. Formula: SiO2
Word Origin
C14: via Latin from Greek sardonux, perhaps from sardionsardine² + onux nail
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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sardonyx in the Bible

(Rev. 21:20), a species of the carnelian combining the sard and the onyx, having three layers of opaque spots or stripes on a transparent red basis. Like the sardine, it is a variety of the chalcedony.

Easton's 1897 Bible Dictionary
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