mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Hardness: 5 on Mohs scale; Color: Neon blue to greenish-blue; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: Poor; Specific Gravity: 3.16 to 3.22

Hardness: 5 on Mohs scale
Color: Neon blue to greenish-blue
Luster: Vitreous (glassy)

Identified May 9, 2026More mineral →

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Physical properties

Hardness: 5 on Mohs scale; Color: Neon blue to greenish-blue; Luster: Vitreous (glassy); Crystal Structure: Hexagonal; Cleavage: Poor; Specific Gravity: 3.16 to 3.22

Formation & geological history

Formed in igneous, sedimentary, and metamorphic environments, specifically frequently found in granitic pegmatites and metamorphic limestone. Can be found in deposits ranging from Precambrian to recent times.

Uses & applications

Primary source of phosphorus for chemical fertilizers; used as a gemstone in jewelry (though soft); also used in geological research (fission track dating) and dental implants.

Geological facts

Apatite is the mineral that makes up the teeth and bones of all vertebrate animals. The name comes from the Greek word 'apate', meaning 'to deceive', because it was historically confused with other minerals like tourmaline and beryl.

Field identification & locations

Identify by its characteristic blue color and low hardness (can be scratched by a steel blade). Commonly found in Brazil, Madagascar, Mexico, and Myanmar. For collectors, look for the hexagonal crystal habit and greasy-to-vitreous sheen.