mineral

Raw green fluorite

Fluorite (calcium fluoride, CaF₂)

AI-generated identification · may be incorrect

Pale mint-green, translucent to transparent, with vitreous luster and prominent cubic cleavage; Mohs hardness 4 and specific gravity about 3.18. The irregular piece appears partially crystalline, though the image alone cannot exclude green glass or another pale green mineral.

Identified September 6, 2026More mineral →

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Physical properties

Formation & geological history

Fluorite forms mainly in hydrothermal veins and carbonate-hosted deposits, commonly with quartz, calcite, galena, and barite. Deposits range from Paleozoic to modern geologic ages and occur worldwide.

Uses & applications

Used industrially as a flux in steelmaking and as a source of fluorine; transparent, colorful crystals are collected and occasionally cut as gemstones, though fluorite is relatively soft.

Geological facts

Green fluorite can fluoresce blue, violet, or green under ultraviolet light, depending on trace elements and defects. Cubic crystal faces or stepped cleavage surfaces strongly support identification.

Field identification & locations

Look for cubic geometry, easy cleavage into octahedral fragments, glassy luster, and hardness below glass; a scratch test should be performed only on an inconspicuous area. Common localities include China, Mexico, England, Illinois, and Colorado.