mineral

Blue Apatite

Fluorapatite - Ca5(PO4)3F

Hardness: 5 on Mohs scale; Color: neon blue to deep teal; Luster: Vitreous to sub-resinous; Crystal System: Hexagonal; Specific gravity: 3.16-3.23. Tumbled and polished finish.

Hardness: 5 on Mohs scale
Color: neon blue to deep teal
Luster: Vitreous to sub-resinous

Identified July 21, 2026More mineral →

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Physical properties

Hardness: 5 on Mohs scale; Color: neon blue to deep teal; Luster: Vitreous to sub-resinous; Crystal System: Hexagonal; Specific gravity: 3.16-3.23. Tumbled and polished finish.

Formation & geological history

Forms through magmatic and hydrothermal processes in igneous and metamorphic rocks. Most neon blue specimens like this one are typically found in pegmatites or hydrothermal veins across various geological eras.

Uses & applications

Commonly used as a gemstone for collectors, in jewelry (with care due to its softness), and mass-produced in tumbled form for metaphysical spiritual use. Industrially, apatite is a primary source of phosphorus for fertilizer.

Geological facts

The name 'Apatite' is derived from the Greek word 'apate', meaning 'deceit', because it was historically confused with other minerals like tourmaline, beryl, and olivine. It is the defining mineral for level 5 on the Mohs hardness scale.

Field identification & locations

Identified by its distinctive neon blue hue, basal cleavage, and the fact it can be scratched by a steel blade but not by a copper penny. Found frequently in Madagascar, Brazil, and Mexico. Collectors should look for internal fractures and 'shimmer' known as chatoyancy in high-quality pieces.