Yellow onyx combination bracelet with quartz and yellow quartzA power stone that increases your luck with money! Recommended for women! 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 wards off evil" and has been used as a talisman or amulet to ward off evil since ancient times. It has been used as a talisman to ward off evil