Georgia quartz (amethyst); Jacksons Crossroads, Wilkes Co., Georgia, USA. Photo by Géry Parent/Flickr (Use Permitted with Attribution/No Derivative Works).
Official State Gem of Georgia
Georgia designated quartz as the official state gem symbol in 1976 (Georgia also recognizes an official state mineral). All State Gems
Quartz is common in Georgia and can be found in a wide variety of colors. The state legislation cited two particular forms of quartz - amethyst (used mostly in jewelry), and clear quartz (which resembles a diamond when faceted).