Fluorite is a very common mineral that is extremely popular among collectors because of its numerous crystal forms and varied, rich colors. However, in its pure form, this mineral is colorless; the numerous colors are the result of various impurities and inclusions. Fluorite also displays a unique feature derived from its own name called fluorescence; that is, when a mineral is illuminated with ultraviolet light, it display a distinct glowing effect. It often occurs in association with Quartz, Calcite, Barite, Sphalerite, Pyrite and Rhodochrosite to name just a few.

Fluorite is commonly found to produce cubic and octahedral (diamond shaped) crystal formations, all part of the Isometric (or cubic) crystal system. However, there is an almost endless variety of simple and complex combinations of these crystal systems, presenting a very diverse crystallography for this amazing mineral. Yet another unique feature of this mineral is its cleavage: It exhibits perfect cleavage in four directions to form octahedrons.

Fluorite is a common mineral found all over the world, with notable locations including China, Namibia, the UK, and the USA (Tennessee) to name just a few.