mineral

Green Fluorite

Calcium Fluoride (CaF2)

Hardness: 4 on Mohs scale; Color: Emerald green, deep teal, or translucent green; Luster: Vitreous (glassy); Crystal Structure: Cubic/Isometric; Cleavage: Perfect octahedral; Specific Gravity: 3.1

Hardness: 4 on Mohs scale
Color: Emerald green, deep teal, or translucent green
Luster: Vitreous (glassy)

Identified July 13, 2026More mineral →

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Physical properties

Hardness: 4 on Mohs scale; Color: Emerald green, deep teal, or translucent green; Luster: Vitreous (glassy); Crystal Structure: Cubic/Isometric; Cleavage: Perfect octahedral; Specific Gravity: 3.1

Formation & geological history

Formed in hydrothermal veins and sedimentary deposits through the interaction of fluorine-bearing solutions with calcium-rich rocks like limestone. Often found in association with ores of lead and silver.

Uses & applications

Used in the manufacturing of hydrofluoric acid, as a flux in steel making, in high-performance telescope lenses (if optic grade), and as a semi-precious stone for jewelry and metaphysical collections.

Geological facts

Fluorite is often called 'The Most Colorful Mineral in the World' because it can appear in almost any color of the spectrum. It gave its name to the phenomenon of fluorescence since many specimens glow under UV light.

Field identification & locations

Identified in the field by its distinct cubic habit, soft surface (easily scratched by a knife), and perfect octahedral cleavage. Common in areas like Illinois (USA), China, and Mexico. Collectors look for clarity and deep color.