Prasiolite, also known as Vermarine or Green Amethyst is quite simply Green Quartz. When natural, this beautiful, vibrant grass-green gemstone is an extremely rare member of the Quartz family. Green Amethyst is reputed to have many miraculous powers attributed to it. It is said to bring good fortune and luck and was symbolic of someone with high ranking. Prasiolite, Vermarine, Green Amethyst (or whatever you prefer to call it) is often confused with other gemstones such as Peridot, Green Tourmaline and Green Beryl.