mineral
wavellite
Al3(PO4)2(OH,F)3·5H2O
AI-generated identification · may be incorrectHardness of 3.5 to 4 on the Mohs scale, typically green, yellow, or white in color with a vitreous to pearly luster. It crystallizes in the orthorhombic system and commonly forms distinctive radiating, spherical, or botryoidal aggregates.
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Physical properties
Hardness of 3.5 to 4 on the Mohs scale, typically green, yellow, or white in color with a vitreous to pearly luster. It crystallizes in the orthorhombic system and commonly forms distinctive radiating, spherical, or botryoidal aggregates.
Formation & geological history
Forms as a secondary mineral in low-grade metamorphic rocks, hydrothermal veins, and aluminum-rich phosphate deposits through the alteration of primary apatite or aluminum minerals.
Uses & applications
Primarily valued by mineral collectors for its unique spherical crystal habits and aesthetic specimens rather than for industrial applications.
Geological facts
Wavellite was first discovered in 1805 in Devon, England, and is named after its discoverer, William Wavell. It often exhibits chatoyancy or a fibrous texture when fractured across the spherical aggregates.
Field identification & locations
Easily identified in the field by its distinct radiating ball-like or starburst crystal formations on host rock matrices. Notable localities include Arkansas in the US, Germany, and England.
