Rock crystal quartz, the most common form of macrocrystalline quartz, is a clear quartz with a colorless, transparent, quiet beauty. We're told that our supply of rock crystal beads is natural, but occasionally we suspect we've been sold lab-grown quartz, which is manmade but chemically identical to the type found in nature. Semiprecious rock crystal beads are considered by many to be the best all-purpose crystal. Also known as Bohemian diamond, Tasmanian diamond and multiple other faux diamond trade names, rock crystal quartz is reputed to cleanse the mind and body, strengthen alignment with one's higher self, enhance the properties of other gemstones, and give strength. It is also said to lessen negativity and remove toxins.