Aren't they mesmerizing?! Yup, thats fluorite also known as fluorspar. A mineral made up of calcium and fluoride or calcium flouride. Its chemical form CaF2. It's ranked a 4 on the scale of hardness. Fluorite can come in every single color on the color spectrum. Colorful both in visible and ultraviolet light. The word fluorescent… Continue reading Collection of Fluorite!