Rock Identifier
Fluorite Tower (Fluorite (Calcium Fluoride - CaF2)) — mineral
mineral

Fluorite Tower

Fluorite (Calcium Fluoride - CaF2)

Hardness: 4 (Mohs scale), Color: Varies from translucent purple, green, to clear. Luster: Vitreous (glassy). Crystal structure: Isometric (though this specimen is carved). Cleavage: Perfect octahedral. Specific gravity: 3.18.

Color
Varies from translucent purple, green, to clear
Luster
Vitreous (glassy)
Identified More mineral

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Physical properties

Hardness: 4 (Mohs scale), Color: Varies from translucent purple, green, to clear. Luster: Vitreous (glassy). Crystal structure: Isometric (though this specimen is carved). Cleavage: Perfect octahedral. Specific gravity: 3.18.

Formation & geological history

Formed through hydrothermal activity in veins and within sedimentary rocks like limestone. Often found as a secondary mineral in ore deposits with lead and zinc. Occurs in geological stages from Paleozoic to more recent era formations.

Uses & applications

Used as a flux in steel and aluminum production, in the manufacture of opalescent glass and enamels, and as a source of hydrofluoric acid. This specific tower shape is popular in the metaphysical community for decorative use and jewelry.

Geological facts

Fluorite was the first mineral discovered to exhibit 'fluorescence,' where it glows under ultraviolet light. It is one of the most colorful minerals in the world, earning it the nickname 'the most colorful mineral in the world.'

Field identification & locations

Identify by its distinctive softness (can be scratched by a knife but not a penny) and its octahedral cleavage. Commonly found in China, Mexico, South Africa, and the Illinois-Kentucky fluorspar district in the USA.