Rock Identifier
Polished blue apatite point (Apatite group mineral, commonly fluorapatite (Ca₅(PO₄)₃F)) — mineral
mineral

Polished blue apatite point

Apatite group mineral, commonly fluorapatite (Ca₅(PO₄)₃F)

AI-generated identification · may be incorrect

Vivid blue to blue-green body with white-gray matrix and brown veining; vitreous luster, hexagonal crystal structure, Mohs hardness 5, and poor cleavage. This appears cut and polished into a tower rather than naturally crystal-terminated.

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Physical properties

Vivid blue to blue-green body with white-gray matrix and brown veining; vitreous luster, hexagonal crystal structure, Mohs hardness 5, and poor cleavage. This appears cut and polished into a tower rather than naturally crystal-terminated.

Formation & geological history

Forms in igneous rocks, especially alkaline and granitic pegmatites, and in some metamorphic deposits; specimens commonly come from Madagascar, Brazil, Mexico, and Pakistan. Geological ages vary by deposit, typically from Paleozoic to Cenozoic.

Uses & applications

Used primarily as a lapidary and metaphysical collectible; transparent material can be faceted as a gemstone. Apatite is also an important phosphate ore for fertilizer production.

Geological facts

Apatite is the mineral family defining Mohs hardness 5. Its intense blue color is often caused by trace elements and structural defects.

Field identification & locations

Identify by its blue color, moderate softness, glassy luster, and commonly fractured or matrix-filled appearance; it is softer than quartz and can be scratched by a steel file. Similar-looking blue stones include turquoise, larimar, and dyed quartz.