Fluorite Octahedron

$7.50

Fluorite is the mineral form of calcium fluoride, CaF2.

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Fluorite is the mineral form of calcium fluoride, CaF2. It belongs to the halide minerals.  Pure fluorite is transparent, both in visible and ultraviolet light, but impurities usually make it a colorful mineral and the stone has ornamental and lapidary uses. Industrially, fluorite is used as a flux for smelting, and in the production of certain glasses and enamels.

It crystallizes in isometric cubic habit, although octahedral and more complex isometric forms are not uncommon. The Mohs scale of mineral hardness, based on scratch hardness comparison, defines value 4 as Fluorite.