Onyx Beaded Earrings
Onyx is a term used loosely to apply to a banded marble and also to agate, a fine grained variety of quartz. Ordinary onyx of quartz or agate is dyed black, white, green or red, etc. Onyx is strong and hard and takes a high polish. It is widely used in the carving of cameos and intaglios. Beaded onyx jewelry has been a favorite for generations.