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

Fluorite

Calcium Fluoride (CaF2)

AI-generated identification · may be incorrect

Hardness of 4 on the Mohs scale, vitreous luster, cubic crystal system, and perfect octahedral cleavage. Colors range from colorless and green to purple and yellow.

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Physical properties

Hardness of 4 on the Mohs scale, vitreous luster, cubic crystal system, and perfect octahedral cleavage. Colors range from colorless and green to purple and yellow.

Formation & geological history

Forms primarily in hydrothermal veins and carbonate sedimentary rocks through mineral-rich fluid precipitation.

Uses & applications

Widely used in metallurgy as a flux, in the manufacturing of optical lenses, and as a popular mineral specimen for collectors.

Geological facts

Fluorite exhibits strong fluorescence under ultraviolet light, a phenomenon named after the mineral itself.

Field identification & locations

Identified easily by its characteristic cubic crystal habit and lower hardness than quartz; commonly found in worldwide localities including China, Mexico, and the UK.