sardonyx

3 definitions found

sardonyx - 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]

sardonyx - WordNet (r) 2.1 (2005) :

  sardonyx
      n 1: an onyx characterized by parallel layers of sard and a
           different colored mineral

sardonyx - 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.