σαρδόνυξ
σαρδόνυξ, ῠχος, ὁ,(σάρδιον)
A). sardonyx, , 216 , 5.46 AP 1.116 , AJ 3.7.5 , BJ 5.5.7 , Apoc. 21.20 , Ps.- Fluv. 20.4 , etc. The stone was called ὄνυξ when the dark ground was simply spotted or streaked with white, but σαρδόνυξ if the different colours were disposed in layers.