[sahr-don-iks, sahr-dn-] 
| a chalcedony that is used for cameos and has sard and chalcedony of another color, usually white, arranged in straight parallel bands. |
| sar·don·yx (sär-dŏn'ĭks, sär'dn-ĭks') n. An onyx with alternating brown and white bands of sard and other minerals. [Middle English sardonix, probably from Latin sardonyx, from Greek sardonux : sardion, sard; see sard + onux, onyx, nail; see nogh- in Indo-European roots.] |
ɪks