mineral

Green Fluorite (Botryoidal/Massive)

Calcium Fluoride (CaF2)

Hardness: 4 on Mohs scale; Color: Pale green to bluish-green; Luster: Vitreous to dull; Crystal structure: Isometric (though appearing massive/drusy here); Cleavage: Perfect octahedral; Specific gravity: 3.175-3.184.

Hardness: 4 on Mohs scale
Color: Pale green to bluish-green
Luster: Vitreous to dull

Identified July 9, 2026More mineral →

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Physical properties

Formation & geological history

Formed through hydrothermal processes where hot fluorine-bearing fluids circulate through cracks in limestone or other rocks. This specific habit suggests lower temperature formation in cavities or veins.

Uses & applications

Used as a flux in steelmaking (fluorite), in the manufacture of glass and enamels, for carving decorative objects, and as a popular mineral specimen for collectors.

Geological facts

Fluorite is the origin of the term 'fluorescence' because many specimens glow under ultraviolet light. It is also the defining mineral for level 4 on the Mohs scale of mineral hardness.

Field identification & locations

Identified by its relatively low hardness (can be scratched by a knife but not a copper coin), its cubic cleavage fragments, and often its distinct colors. Commonly found in China, Mexico, and the UK (Durham).

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