Rock Identifier
Fluorite (Calcium Fluoride (CaF2)) — mineral
mineral

Fluorite

Calcium Fluoride (CaF2)

AI-generated identification · may be incorrect

Mohs hardness of 4, vitreous luster, cubic crystal system, perfect octahedral cleavage, specific gravity of 3.18, colors range from purple and green to clear and yellow.

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Physical properties

Mohs hardness of 4, vitreous luster, cubic crystal system, perfect octahedral cleavage, specific gravity of 3.18, colors range from purple and green to clear and yellow.

Formation & geological history

Formed in hydrothermal veins and carbonate host rocks through the deposition of minerals from aqueous solutions at varying temperatures.

Uses & applications

Widely used in jewelry, gemstone carving, and as a flux in steel production and aluminum manufacturing.

Geological facts

Fluorite exhibits strong fluorescence under ultraviolet light, a property that derives its scientific name.

Field identification & locations

Easily identified by its characteristic lower hardness (scratched by glass) and perfect cleavage; commonly sourced from China, Mexico, and the USA.