mineral
Likely pale-green fluorite crystal
Fluorite (calcium fluoride, CaF₂)
AI-generated identification · may be incorrectA translucent, pale greenish-yellow crystal with a vitreous to slightly dull luster. Fluorite has Mohs hardness 4, cubic crystal structure, and perfect octahedral cleavage; the photo alone does not confirm the identification.
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Physical properties
A translucent, pale greenish-yellow crystal with a vitreous to slightly dull luster. Fluorite has Mohs hardness 4, cubic crystal structure, and perfect octahedral cleavage; the photo alone does not confirm the identification.
Formation & geological history
Fluorite commonly crystallizes from hydrothermal fluids in veins and cavities, often alongside quartz and calcite. Such deposits formed in many geological periods.
Uses & applications
Used as an industrial flux and source of fluorine; colorful transparent crystals are collected and sometimes cut for jewelry, though its softness limits wear.
Geological facts
Fluorite fluoresces under ultraviolet light in some specimens, a property named after the mineral.
Field identification & locations
The pale, translucent appearance is consistent with fluorite, but the image lacks clear crystal faces or diagnostic cleavage; a hardness or cleavage test would help distinguish it from calcite. It occurs worldwide in hydrothermal veins and sedimentary deposits.
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