Green Amethyst is a light green colored- transparent Semi-Precious Gemstone. Prasiolite is Green Quartz, a silicate mineral which is chemically silicon dioxide. Prasiolite, which is popularly known as Green Amethyst stone does not occur naturally. It is produced by heating Amethyst which is Yellowish Quartz. This Yellow Quartz is mainly found in Brazil and the USA. Amethyst is heated at about 500-degree centigrade to produce Green Amethyst Stone having a pale Green Color which when exposed in direct strong sunlight loses its color. Some varieties of Green Quartz do occur naturally. These are members of the Chalcedony Quartz family. They comprise of Chrysoprase and aventurine. Aventurine is mainly dark-green with a glittery metallic appearance caused by included green mica. Chrysoprase is colored due to the presence of trace amounts of nickel. Its color varies from apple-green to deep green. These are purely and completely Natural Gemstones.
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