mineral
Likely pale green fluorite crystals
Fluorite (calcium fluoride, CaF₂)
AI-generated identification · may be incorrectSmall translucent, pale green crystals with a vitreous luster; fluorite has Mohs hardness 4, cubic crystal structure, perfect octahedral cleavage, and specific gravity about 3.2. The image is low-detail, so the identification is tentative.
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Physical properties
Small translucent, pale green crystals with a vitreous luster; fluorite has Mohs hardness 4, cubic crystal structure, perfect octahedral cleavage, and specific gravity about 3.2. The image is low-detail, so the identification is tentative.
Formation & geological history
Fluorite commonly crystallizes from hydrothermal fluids in veins and cavities, often alongside quartz, calcite, or sulfide minerals; specimens form across many geological ages.
Uses & applications
Used as a source of fluorine in chemical and metallurgical industries; attractive crystals are collected and occasionally cut as gemstones, though they are relatively soft.
Geological facts
Fluorite can fluoresce under ultraviolet light, a phenomenon named after the mineral.
Field identification & locations
Look for cubic or octahedral crystals, glassy luster, and distinctive cleavage; common deposits include China, Mexico, England, and the United States. A definitive identification would require closer examination or testing.
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