mineral

Blue apatite (likely dyed or enhanced)

Apatite group; fluorapatite, Ca5(PO4)3F, is the common blue variety

AI-generated identification · may be incorrect

Typically blue to green-blue with vitreous to resinous luster; Mohs hardness 5, hexagonal crystal system, uneven fracture, and poor cleavage. The vivid turquoise-blue color and rough texture may indicate dyeing or surface enhancement, and identification is uncertain from a photo alone.

Identified August 25, 2026More mineral →

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Physical properties

Formation & geological history

Forms in igneous rocks such as pegmatites and nepheline syenites, and in metamorphic or sedimentary phosphate deposits; crystals range from Precambrian to recent geological ages.

Uses & applications

Used mainly as a collector mineral and occasionally as a gemstone; phosphate apatite is industrially important for fertilizer and phosphoric acid. Rough specimens commonly have modest value.

Geological facts

Apatite is the reference mineral for Mohs hardness 5 and is chemically similar to the phosphate minerals in bones and teeth.

Field identification & locations

Look for hexagonal crystals, moderate hardness, and blue-green color; it can resemble turquoise, beryl, or glass. Common sources include Brazil, Mexico, Madagascar, Canada, and Russia; UV response and laboratory testing can help distinguish it.