The most recognizable purple stone is the amethyst, a clear purple or bluish-violet variety of crystallized quartz commonly used in making jewelry or for decorative display. The name of the amethyst stone is tied to the Ancient Greek language and means "not intoxicated." This refers to the belief by some people that the amethyst protects the wearer from intoxication by alcohol.
The amethyst stone's violet color comes from the process of irradiation as well as from iron impurities and trace elements. Deposits of the stone are abundant in Brazil, North Carolina, Ontario and Uraguay. Additional gemstones with violet, lavender and purple hues include flourite, spinel, tourmaline, sapphire and chalcedony. Amethyst is the birthstone for the month of February.