Meaning of sardonyx

sar•don•yx

Pronunciation: (sär-don'iks, sär'dn-), [key]
— n.
  1. a chalcedony that is used for cameos and has sard and chalcedony of another color, usually white, arranged in straight parallel bands.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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