+ Strand length: 8 inches Chalcedony is the form of Quartz that is compact and microcrystalline. It occurs in many different forms, colors, and patterns, and many varieties have been used as gemstones since antiquity. In the gemstone trade, the term Chalcedony is often used specifically to describe the white, gray, or blue translucent type of Chalcedony, but its technical term includes all additional varieties.Chalcedony is a nurturing stone that promotes brotherhood and good will. It absorbs negative energy. It brings the mind, body, emotions and spirit into harmony. Chalcedony instills feelings of benevolence and generosity and eases self-doubt.