mineral

Apatite

Fluorapatite / Chlorapatite (Ca5(PO4)3(F,Cl,OH))

AI-generated identification · may be incorrect

Hardness: 5 on Mohs scale; Color: neon blue to forest green; Luster: vitreous (glassy); Crystal Structure: Hexagonal; Specific Gravity: 3.1-3.2

Hardness: 5 on Mohs scale
Color: neon blue to forest green
Luster: vitreous (glassy)

Identified July 10, 2026More mineral →

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Physical properties

Hardness: 5 on Mohs scale; Color: neon blue to forest green; Luster: vitreous (glassy); Crystal Structure: Hexagonal; Specific Gravity: 3.1-3.2

Formation & geological history

Commonly forms in igneous pegmatites, metamorphic rocks, and sedimentary rocks (as phosphate nodules). It is often found in contact metamorphic rocks.

Uses & applications

Used primarily in the manufacture of phosphate fertilizers; translucent specimens are often used as gemstones or polished as tumbled stones for metaphysical collecting.

Geological facts

Apatite is the defining mineral for level 5 on the Mohs scale of mineral hardness. The name is derived from the Greek word 'apate', meaning to 'deceive', because it was often confused with other minerals like peridot or beryl.

Field identification & locations

Identify by its distinctive blue-green color and hexagonal crystal habits. It is found globally with notable deposits in Brazil, Madagascar, and Myanmar. Caution: it is brittle and sensitive to heat.