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Calcium fluoride

Calcium fluoride is the inorganic compound with the formula CaF2. This ionic compound of calcium and fluorine occurs naturally as the mineral fluorite (also called fluorspar).

CharacteristicsEdit

This insoluble solid adopts a cubic structure wherein calcium is coordinated to eight fluoride anions and each F− ion is surrounded by four Ca2+ ions. Although the pure material is colourless, the mineral is often deeply coloured due to the presence of F-centers.

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