mineral

Polished green fluorite tower

Fluorite (calcium fluoride, CaF₂)

AI-generated identification · may be incorrect

Typically pale green, translucent, and vitreous with cubic crystal structure and perfect octahedral cleavage; Mohs hardness 4, specific gravity about 3.18. The flat faces and pointed top are human-cut and polished, while internal veils and color zoning are natural.

Identified September 4, 2026More mineral →

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Physical properties

Formation & geological history

Forms mainly in hydrothermal veins and cavities associated with limestone, dolostone, and igneous rocks; deposits range from Paleozoic to Cenozoic in age. Common sources include China, Mexico, England, the United States, and Morocco.

Uses & applications

Used as a flux in steel and aluminum production, a source of hydrofluoric acid, and an ornamental or collectible mineral; polished towers are decorative and metaphysical-market items.

Geological facts

Fluorite commonly fluoresces blue, purple, green, or cream under ultraviolet light, though fluorescence cannot be confirmed from the image. Green color may result from trace rare-earth elements or irradiation-related defects.

Field identification & locations

Identify by its glassy luster, cool translucent appearance, cubic zoning, relatively low hardness, and easy cleavage; it can be scratched by a steel knife. Comparable green materials include calcite, prehnite, and glass, so testing or locality information is useful.