mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Hardness: 5 on Mohs scale; Color: Neon blue to greenish-blue; Luster: Vitreous to sub-vitreous; Crystal Structure: Hexagonal; Cleavage: Poor; Specific Gravity: 3.16-3.22

Hardness: 5 on Mohs scale
Color: Neon blue to greenish-blue
Luster: Vitreous to sub-vitreous

Identified June 17, 2026More mineral →

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Physical properties

Hardness: 5 on Mohs scale; Color: Neon blue to greenish-blue; Luster: Vitreous to sub-vitreous; Crystal Structure: Hexagonal; Cleavage: Poor; Specific Gravity: 3.16-3.22

Formation & geological history

Forms in igneous rocks like pegmatites or metamorphic rocks through hydrothermal processes. Most gem-quality blue apatite is formed in high-heat environments deep within the crust.

Uses & applications

Primarily used as a source of phosphorus for fertilizer; gem-quality stones are used in jewelry (though soft) and by mineral collectors.

Geological facts

The name Apatite is derived from a Greek word meaning 'to deceive' because it was historically confused with other minerals like tourmaline and beryl due to its varied colors.

Field identification & locations

Identify by its characteristic blue-green color and relative softness (it can be scratched by a steel blade). Commonly found in Madagascar, Brazil, and Burma.