Fluorite Fluorite, is a mighty crystal for ... like onyx or clear quartz, as jewelry. For example, they could wear this kind of crystal in the form of a necklace or bracelet when studying or ...

Figure 1. This large fluorite sphere proved to be coated with a fine grained phosphorescent powder and a colorless plastic. Photos by Don Mengason. A large green 2,685 ct, 120 mm sphere was recently ...