Portions of Cass County were used to created Gordon County in 1850 (Ga. Laws 1849-50, p. 124). Georgia's 87th county was named for Pres. Andrew Jackson's Secretary of War, Gen. Lewis Cass of Michigan.
These different types of sapphires and their colors are because of traces of titanium, chromium, vanadium and iron found in these gemstones.hese are the most popular of all sapphires and sapphires are synonymous with those having the blue color. That is why these are often known only as sapphires without any preface for its color. The finest of these come from regions of Mogok in Burma, Sri Lanka and also the Kashmir area in India.
Quartz is one of the most common and varied minerals on earth, and its abundant colors produce many gemstone types. Amethyst and Citrine are the most popular and valuable gem varieties of Quartz, but other forms also make important gemstones.Chalcedony describes any form of Quartz that is microcrystalline, in compact form without any visible crystal s.arieties specific to Amethyst, Citrine, Smoky Quartz, Rose Quartz, Rutilated Quartz, and Chalcedony are listed separately. 1  Amethyst-Purple variety of Quartz, and its most popular and valuable gemstone variety.