mineral

Green Fluorite

Calcium Fluoride (CaF2)

AI-generated identification · may be incorrect

Mohs hardness of 4, vitreous luster, isometric crystal system, octahedral cleavage, color ranges from pale to deep green, transparent to translucent.

Identified July 9, 2026More mineral →

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Physical properties

Mohs hardness of 4, vitreous luster, isometric crystal system, octahedral cleavage, color ranges from pale to deep green, transparent to translucent.

Formation & geological history

Forms primarily in hydrothermal veins, often associated with metallic minerals like lead and silver ores. It occurs in a variety of geological environments from sedimentary to igneous.

Uses & applications

Used as a flux in steel and aluminum processing, in the manufacture of hydrofluoric acid, in high-performance optical lenses, and as a popular semi-precious gemstone for decorative carvings and jewelry.

Geological facts

Fluorite is the origin of the term 'fluorescence' because many specimens glow under ultraviolet light. It is often called 'the most colorful mineral in the world'.

Field identification & locations

Identifiable by its softness (can be scratched by a steel knife), perfect cleavage, and cubic or octahedral crystal habits. Commonly found in China, Mexico, South Africa, and the USA (Illinois/Kentucky).