mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
AI-generated identification · may be incorrectHardness: 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
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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.
