mineral
Fluorite
Calcium Fluoride (CaF2)
AI-generated identification · may be incorrectHardness of 4 on the Mohs scale, varies in color from green to purple, vitreous luster, and crystallizes in the isometric system with perfect octahedral cleavage.
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Physical properties
Hardness of 4 on the Mohs scale, varies in color from green to purple, vitreous luster, and crystallizes in the isometric system with perfect octahedral cleavage.
Formation & geological history
Formed in hydrothermal veins and sedimentary deposits through the precipitation of fluorine-rich solutions.
Uses & applications
Widely used in metallurgy as a flux, in the manufacture of optical lenses, and as a popular collector mineral and gemstone.
Geological facts
Fluorite is the defining mineral for a hardness of 4 on the Mohs scale and exhibits strong fluorescence under ultraviolet light.
Field identification & locations
Identified by its relatively low hardness, cubic crystal habits, and multiple cleavage planes; commonly found in major deposits across China, Mexico, and the USA.
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Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
igneous