mineral

Blue Apatite

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

AI-generated identification · may be incorrect

Hardness: 5 on the Mohs scale, Color: Vivid blue, green, or yellow, Luster: Vitreous to sub-resinous, Crystal Structure: Hexagonal, Cleavage: Poor, Specific Gravity: 3.1-3.2

Identified August 4, 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 the Mohs scale, Color: Vivid blue, green, or yellow, Luster: Vitreous to sub-resinous, Crystal Structure: Hexagonal, Cleavage: Poor, Specific Gravity: 3.1-3.2

Formation & geological history

Forms in igneous, metamorphic, and sedimentary environments, often as an accessory mineral in pegmatites and hydrothermal veins.

Uses & applications

Used primarily as a source of phosphate for fertilizers, in gemstone jewelry for collectors, and in metaphysical practices.

Geological facts

Apatite is the defining mineral for a hardness of 5 on the Mohs scale. Teeth and bones are composed of a hydroxylapatite form.

Field identification & locations

Identified by its distinctive hexagonal crystal form, specific hardness of 5, and often vibrant blue or green coloration. Found worldwide, notably in Madagascar, Brazil, and Russia.