mineral

Blue Apatite

Apatite-(CaF), Ca5(PO4)3F (Calcium Fluorophosphate)

Hardness: 5 on Mohs scale; Color: Neon blue to deep teal; Luster: Vitreous to sub-resinous; Crystal structure: Hexagonal; Cleavage: Poor; Specific gravity: 3.16 to 3.22.

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

Identified March 25, 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 structure: Hexagonal; Cleavage: Poor; Specific gravity: 3.16 to 3.22.

Formation & geological history

Formed in igneous and metamorphic environments, specifically in pegmatites and metamorphic limestone. Can be found in rocks as old as the Precambrian era.

Uses & applications

Primary source of phosphorus for chemical fertilizers. High-quality specimens are used as gemstones and in crystal healing collections.

Geological facts

Apatite is the defining mineral for number 5 on the Mohs scale of mineral hardness. Its name comes from the Greek word 'apate', meaning 'to deceive', because it was often confused with other minerals like tourmaline and beryl.

Field identification & locations

Identify by its distinctive electric blue color and 'softer' feel compared to beryl. Commonly found in Madagascar, Brazil, and Burma. Collectors should look for its hexagonal crystal habit and glass-like luster.

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