Calcium fluoride is a mineral composed of calcium fluoride (CaF2), the main fluorine-bearing mineral. It emerges as cleavable masses and cubic, isometric crystals. When in its purest form, it is clear and colourless, or translucent with a glassy shine. The hue of the stone is caused by impurities, and certain kinds have fluorescence. It is frequently discovered in limestone and dolomites, either in isolated veins or in close proximity to lead, silver, or zinc ores.
Because of its many different hues, fluorite has earned the title of "the most colourful mineral in the world." The most prevalent hues are colourless, violet, blue, green, and yellow. Less often seen colours include almost all shades of pink, red, white, brown, and black. There is frequently colour banding or zoning. Fluorite's colour is influenced by a number of elements, including as impurities, radiation exposure, and the size of the colour centres.
