HQRP-Crystal Amethyst (AA30) You will receive: ___ (Stand not Included). A violet to purple variety of quartz. Formula: SiO2; Colour: Violet - Purple; Amethyst is the purple variety of quartz and is a popular gemstone. The name "amethyst" comes from the Greek and means "not drunken." This was maybe due to a belief that Amethyst would ward off the effects of alcohol, but most likely the Greeks were referring to the almost wine-like color of some stones that they may have encountered. Its color is unparalleled, and even other, more expensive purple gemstones are often compared to its color and beauty. When heated to more than about 300-400C, amethyst loses its violet color and often turns yellow, orange or brown, and then resembles the quartz variety citrine, but depending on the locality and the temperature during the heat treatment it may also turn colorless or - rarely - green (Neumann and Schmetzer, 1984). (The above information is provided solely for informational purpose. Kindly note that all stones are offered for decorative purposes only. Please, handle your stones with great care, do not grind or crumble them, do not dip or add them into your food or drink, do not use any parts of them in any elixirs, potions, lotions etc. Always make sure you wash your hands before and after working with your crystals.)