mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Hardness: 5 on Mohs scale; Color: Neon blue to teal; Luster: Vitreous to sub-resinous; Crystal structure: Hexagonal; Cleavage: Poor; Specific gravity: 3.1-3.2

Hardness: 5 on Mohs scale
Color: Neon blue to teal
Luster: Vitreous to sub-resinous

Identified July 9, 2026More mineral →

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Physical properties

Hardness: 5 on Mohs scale; Color: Neon blue to teal; Luster: Vitreous to sub-resinous; Crystal structure: Hexagonal; Cleavage: Poor; Specific gravity: 3.1-3.2

Formation & geological history

Formed as a common accessory mineral in igneous, metamorphic, and sedimentary rocks. Particularly found in pegmatites and hydrothermal veins where phosphate minerals concentrate.

Uses & applications

Used primarily as a primary source of phosphorus for fertilizer. High-quality specimens are used as gemstones and for lapidary work, though its softness limits its use in rings.

Geological facts

Apatite is the mineral that makes up the tooth enamel and bones of many living creatures, including humans. It was named after the Greek word 'apatein' meaning 'to deceive' because it was often mistaken for other stones like tourmaline or beryl.

Field identification & locations

Identify by its characteristic blue-green color and relative softness (can be scratched by a steel blade). Commonly found in Madagascar, Brazil, and Mexico. Collectors look for intense color saturation and clarity.