What is Amethyst? Amethyst is one of the most valuable members of the vast Quartz family, and can be found in a range of beautiful opaque to transparent purples. It is considered to be a semi-precious...
Chalcedony is a catch all term that includes many well known varieties of cryptocrystalline quartz gemstones. They are found in all 50 States, in many colors and color combinations, and in sedimentary,...