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 to 3.22.

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

Identified March 14, 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 to 3.22.

Formation & geological history

Formed in igneous, metamorphic, and sedimentary environments. Typically occurs as an accessory mineral in igneous rocks or as a result of hydrothermal processes. It can be found in layers of sedimentary rock and is often found in pegmatites.

Uses & applications

Primarily used as a source of phosphorus for fertilizer. High-quality specimens are used in jewelry (though soft for rings) and as popular collector's items. In industry, it's used in the manufacture of acids and chemicals.

Geological facts

Apatite is the mineral that makes up the tooth enamel and bones of all vertebrates. Its name is derived from the Greek word 'apatein', meaning 'to deceive', because it was frequently confused with other minerals like tourmaline and beryl.

Field identification & locations

Identify by its characteristic neon-blue color and hexagonal crystal habits. It can be scratched by a knife but not by a copper penny. Commonly found in Brazil, Madagascar, Mexico, and Myanmar. Look for it in pegmatite deposits or phosphate-rich sediments.