Green quartz, also known as prasiolite or green amethyst, is a variety of quartz that gets its green color from natural irradiation.Green quartz ranges in color from a pale green to a deep, vivid green. The intensity of the color can vary depending on factors such as the level of irradiation and the presence of other minerals.Green quartz is often created by heat treatment of certain types of amethyst or yellow quartz. Natural prasiolite is also found in some locations. Similar to other quartz varieties, green quartz can be transparent to translucent.It has a hardness of 7 on the Mohs scale, making it suitable for various jewelry applications.Green quartz is commonly used in jewelry, such as rings, earrings, and pendants. It is cut into various shapes, including faceted stones and cabochons.In metaphysical and spiritual practices, green quartz is sometimes associated with healing, compassion, and the balancing of the heart chakra.