mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
AI-generated identification · may be incorrectHardness: 5 on Mohs scale; Color: Neon blue to teal; Luster: Vitreous to sub-resinous; Crystal structure: Hexagonal; Cleavage: Poor/indistinct; Specific Gravity: 3.16-3.22
- Hardness
- 5 on Mohs scale
- Color
- Neon blue to teal
- Luster
- Vitreous to sub-resinous
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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/indistinct; Specific Gravity: 3.16-3.22
Formation & geological history
Formed in igneous environments (pegmatites), metamorphic rocks, and sedimentary basins. It is a phosphate mineral that often forms as an accessory mineral in most igneous rocks.
Uses & applications
Primary source of phosphorus for fertilizer; used in gemstones (though soft), and for collection. It is also a key bio-available mineral in human teeth and bones.
Geological facts
Apatite is the defining mineral for 5 on the Mohs hardness scale. Its name comes from the Greek word 'apate', which means 'deceit', because it was often confused with other minerals like beryl or tourmaline.
Field identification & locations
Identify by its distinctive blue-green color and relative softness (cannot scratch glass). Commonly found in Brazil, Madagascar, Mexico, and Myanmar. Use a streak test (white) and check for a glass-like luster.
