Black Onyx round Semiprecious-gemstone 8mm
Onyx is basically a form of quartz, which has a fine texture and is primarily black but is also found in other shades such as reddish-brown onyx (Sardonyx), red, blue, green, yellow and white. The most distinguishing feature of onyx is alternating light and dark bands, which are colored in brown, red, black, white and gray. This mystic black onyx easily becomes a favorite when tried and is beautiful together with silver beads or other glass beads