Green Amethyst, also referred to as Green Quartz is a beautiful cool spring green color that looks exquisite in white and yellow gold settings. It is sure to make a statement of sophistication. Green Amethyst is a gem of many names some examples of these names are: greened amethyst, prasiolite also spelled praziolite, vermarine, amagreen, leek stone etc... Green Amethyst is produced by irradiating and heating pale Brazilian Amethyst.