Men's prayer beads, black onyx, 22 beads, matching finish, dark brown tasselA classic item that goes perfectly with mourning clothes Black onyx, like agate, refers to a collection of small quartz crystals. Originally it meant striped agate (sardonyx), but in recent years it seems to mainly refer to black onyx and white onyx. Once onyx was considered a "talisman that exorcises evil" and is a power stone that has been used as a talisman and amulet to ward off evil since ancient times. It has been used as a talisman to ward off