mineral

Blue Apatite

Apatite group (Ca5(PO4)3(F,Cl,OH))

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 2, 2026More mineral →

Explore Blue Apatite in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

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 in igneous pegmatites, metamorphic rocks, and occasionally in sedimentary environments through the accumulation of organic phosphate. Found in aged geological deposits worldwide.

Uses & applications

Primary source of phosphorus for fertilizer; used as a gemstone (though soft) and for mineral collection specimens.

Geological facts

Apatite is the defining mineral for value 5 on the Mohs scale. The name is derived from the Greek word 'apate', meaning 'deceit', because it was often confused with other minerals like beryl or olivine.

Field identification & locations

Identify by its characteristic 'neon' blue color and ability to be scratched by a steel knife but not a copper penny. Commonly found in Madagascar, Brazil, and Mexico. Collectors look for saturation of color and clarity.