Amethyst of synthetic quartz is used. Treated amethyst is produced by gamma ray, X-ray or electron beam irradiation of clear quartz (rock crystal) which has been first doped with ferric impurities. On exposure to heat, the irradiation effects can be partially cancelled and amethyst generally becomes yellow or even green, and much of the citrine, cairngorm, or yellow quartz of jewelry is said to be merely "burnt amethyst". The Greek word "amethystos" may be translated as "not drunken", from Greek "a-", "not" + "methustos", "intoxicated". Amethyst was considered to be a strong antidote against drunkenness, which is why wine goblets were
Amethyst, Princess of Gemworld Mordiel, who has usurped control of their house. Amethyst later joins the Justice League Dark upon being brought to Earth in an effort to reconnect Tim Hunter with magic. Amethyst remains on the team in order to recover the portal stone that John Constantine has stolen. She is told not to trust any promises Constantine has made. Soon after, she has an adventure while exploring the House of Mystery with her allies Black Orchid and Frankenstein. They destroy several malicious threats that try to devour them. During the "Trinity War" storyline, Amethyst is among the superheroes that feel the disturbance