mineral

Green fluorite (likely)

Fluorite, calcium fluoride (CaF₂)

AI-generated identification · may be incorrect

Translucent pale-to-vivid green fragment with vitreous luster and likely cubic crystal structure; Mohs hardness 4, perfect octahedral cleavage, and specific gravity about 3.18. The rounded, irregular shape suggests a broken or tumbled specimen.

Identified August 13, 2026More mineral →

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Physical properties

Formation & geological history

Forms mainly in hydrothermal veins and cavities, commonly with quartz, calcite, and sulfide minerals; deposits range from Precambrian to Cenozoic in age. The image alone cannot establish its exact locality or age.

Uses & applications

Used as a flux in steel and aluminum production, in hydrofluoric-acid manufacture, and as a collectible or occasional gemstone. Green fluorite is generally too soft for durable everyday jewelry.

Geological facts

Fluorite commonly fluoresces blue, purple, green, or white under ultraviolet light, though fluorescence is locality-dependent. Its cubic crystals and octahedral cleavage are diagnostic.

Field identification & locations

Check for cubic crystal faces, strong cleavage, moderate heft, and hardness lower than glass; avoid scratching it unnecessarily. Common sources include China, Mexico, England, the United States, and Namibia.