Search Result for "sardonyx":
1. an onyx characterized by parallel layers of sard and a different colored mineral;
The Collaborative International Dictionary of English v.0.48:
Sardonyx \Sar"do*nyx\, n. [L., fr. Gr. ?. See Sard, and Onyx.] (Min.) A variety of onyx consisting of sard and white chalcedony in alternate layers. [1913 Webster]Easton's 1897 Bible Dictionary:
Sardonyx (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.