mineral

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Hardness: 5 on Mohs scale. Color: Deep teal blue with white or brown matrix. Luster: Vitreous to sub-resinous. Crystal Structure: Hexagonal. Specific Gravity: 3.16 to 3.22.

Hardness: 5 on Mohs scale
Color: Deep teal blue with white or brown matrix
Luster: Vitreous to sub-resinous

Identified May 27, 2026More mineral →

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Physical properties

Hardness: 5 on Mohs scale. Color: Deep teal blue with white or brown matrix. Luster: Vitreous to sub-resinous. Crystal Structure: Hexagonal. Specific Gravity: 3.16 to 3.22.

Formation & geological history

Commonly found in igneous rocks (pegmatites), metamorphic rocks, and sedimentary phosphorite deposits. These crystals typically form in phosphate-rich environments over millions of years.

Uses & applications

Primarily used as a source of phosphorus for fertilizer. High-quality specimens are used for jewelry (though soft) and are very popular in the metaphysical and gemstone collecting markets.

Geological facts

Apatite is the defining mineral for 5 on the Mohs hardness scale. It is actually a group of phosphate minerals. The name is derived from the Greek word 'apate', meaning 'deceit', as it was often confused with minerals like beryl or tourmaline.

Field identification & locations

Identify in the field by its hexagonal crystal habit and its ability to be scratched by a steel blade (distinguishing it from beryl or quartz). Commonly found in Madagascar, Brazil, and Burma. Collectors should look for vibrant color and internal 'lightning' flashes.