Fluorite is classified as a halide
mineral, its chemical formula is CaF2 - chemical composition is
calcium and fluorine. Fluorite occurs naturally world wide and
there are many industrial purposes that the mineral is used for. Acid
grade fluorite is the most pure form of CaF2 (97%) and is used by the chemical industry in the production
of hydrofluoric acid. The
most pure forms of calcium fluoride are colorless; however, impurities cause
the fluorite mineral to form with many different color variations.
Ceramic grade fluorite (85-96% CaF2 )is used in ceramics for the production of
glaze and enamel as the mineral in this form has the properties of producing a
hard glossy surface. Metallurgical grade fluorite contains between 60 and
85% CaF2 and
is used in the production of of iron, steel, and other metals. Other forms
of fluorite especially vibrant colored forms of the mineral may be
cut for decoration or collectible purposes but are too soft to be cut
for jewelry (hardness of 4).
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