Onyx Property
Onyx is translucent or opaque with a matte luster and is generally black with regular white stripes, unlike agate, which is distinguished from onyx by its more chaotic stripes. Sardonyx is a variant, with the regular white stripes of onyx but the red-brown color of sardony. Black onyx is in high demand and comes in a variety of cuts and shapes and is favored by most jewelry designers.Features of Onyx Beads
Crystallography:Hexagonal Mohs hardness: 7 Birthstone: August Typical treatments: Dyeing, Heat Treatment Occurrence: Uruguay / Brazil, etc.