mineral

Green Fluorite

Fluorite (Calcium Fluoride - CaF2)

Hardness: 4 (Mohs scale), Color: Emerald to pale green, Luster: Vitreous (glassy), Crystal Structure: Isometric/Cubic, Cleavage: Perfect octahedral, Specific Gravity: 3.175–3.184.

Identified April 27, 2026More mineral →

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Physical properties

Hardness: 4 (Mohs scale), Color: Emerald to pale green, Luster: Vitreous (glassy), Crystal Structure: Isometric/Cubic, Cleavage: Perfect octahedral, Specific Gravity: 3.175–3.184.

Formation & geological history

Formed in hydrothermal veins through cooling fluids ascending from magma chambers, or as a secondary mineral in carbonate rocks. It occurs across various geological ages from Precambrian to recent deposits.

Uses & applications

Industrial flux in steel making, manufacture of hydrofluoric acid, high-clarity optical lenses, and widely used in jewelry (as beads or cabochons) and metaphysical collecting.

Geological facts

Fluorite is the inspiration for the term 'fluorescence' because many specimens glow under ultraviolet light. It is often called 'the most colorful mineral in the world' due to its wide range of hues.

Field identification & locations

Identified by its relatively low hardness (can be scratched by a knife but not a copper penny) and its perfect four-directional cleavage. Look for translucent green crystals in mining districts rich in lead or silver.