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/indistinct; Specific Gravity: 3.16-3.22

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

Identified June 6, 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/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.