mineral
Fluorite
Calcium Fluoride (CaF2)
AI-generated identification · may be incorrectMohs hardness of 4, vitreous luster, cubic crystal system, perfect octahedral cleavage, and variable colors including green, purple, and clear. Specific gravity is 3.18.
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Physical properties
Mohs hardness of 4, vitreous luster, cubic crystal system, perfect octahedral cleavage, and variable colors including green, purple, and clear. Specific gravity is 3.18.
Formation & geological history
Forms primarily in hydrothermal veins and carbonate rock cavities, often deposited by hot mineral-rich fluids associated with late-stage igneous activity.
Uses & applications
Used widely in metallurgy as a flux, in the manufacture of optical lenses and hydrofluoric acid, and as a popular collector specimen and gemstone.
Geological facts
Fluorite is the defining mineral for a hardness of 4 on the Mohs scale and often exhibits strong fluorescence under ultraviolet light.
Field identification & locations
Identified by its distinctive softness, perfect cleavage, and glass-like luster; commonly found worldwide in locations such as China, Mexico, and England.
