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.]
sardonyx
Dictionary:
sar·don·yx (sär-dŏn'ĭks, sär'dn-ĭks')  |
| 5min Related Video: sardonyx |
| WordNet: sardonyx |
The noun has one meaning:
Meaning #1:
an onyx characterized by parallel layers of sard and a different colored mineral
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 | chalcedony (in crystallography) |
| Time: Birthstones and Flowers |
| quartz (mineral) |
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 | Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2007. Published by Houghton Mifflin Company. All rights reserved. Read more |
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| WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. Read more |
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Mentioned in
- chalcedony (in crystallography)
- Time: Birthstones and Flowers
- quartz (mineral)
- cameo
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