mineral

Green fluorite (likely)

Fluorite — calcium fluoride, CaF₂

AI-generated identification · may be incorrect

Translucent blue-green, vitreous luster, typically cubic crystal structure and perfect octahedral cleavage; Mohs hardness 4, specific gravity about 3.18. The rounded edges indicate a naturally broken or lightly tumbled piece.

Identified August 9, 2026More mineral →

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Physical properties

Formation & geological history

Forms in hydrothermal veins and cavities, often with quartz, calcite, and galena; deposits range from Paleozoic to Cenozoic in age. Common sources include China, Mexico, the United States, England, and Morocco.

Uses & applications

Used industrially as a flux in steel and aluminum production and as a source of hydrofluoric acid; transparent colorful specimens are collected and occasionally cut as gemstones.

Geological facts

Green fluorite can resemble green glass or aventurine. Its softness and distinctive cleavage make it vulnerable to scratching and splitting.

Field identification & locations

Identify by its glassy luster, cubic/octahedral cleavage, moderate weight, and hardness below steel; a scratch test should be performed only on an inconspicuous area. The image alone cannot exclude green calcite, glass, or another green mineral.