mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

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

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

Identified May 28, 2026More mineral →

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Physical properties

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

Formation & geological history

Commonly forms in igneous pegmatites, metamorphic rocks like marble, and sedimentary phosphate deposits via biological or hydrothermal processes.

Uses & applications

Primarily used as a source of phosphorus for fertilizer; high-quality specimens are used in jewelry (cabochons) and as metaphysical or collector stones.

Geological facts

Apatite is the mineral that makes up the tooth enamel and bones of vertebrate animals. It is also the defining mineral for level 5 on the Mohs hardness scale.

Field identification & locations

Identify in the field by its distinct blue color and relatively low hardness (can be scratched by a steel knife). Common locations include Brazil, Madagascar, Mexico, and Myanmar.