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www.mineralgallery.co.za Minerals U-Z |
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Wavellite |
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Name
Wavellite
Chemistry
Al3(PO4)2(OH)3.5H2O
Uses
Is mined for the aluminium content
Color
White to green
Hardness
3.25 to 4
Specific gravity
2.4
Crystals
Crystals are always rare, It usually forms as hemispherical or globular aggregates with a fibrous radiating structure.
Accompanied by:
Phosphoric deposits
Fracture
Uneven
Luster
Vitreous
Cleavage
Prismatic, good
Streak
White
The secondary, hydrated, aluminum phosphate mineral wavellite is widespread in small amounts associated with limonite and phosphate-rock deposits and with low-grade metamorphism. It forms white to green rounded crystalline aggregates. It's luster is vitreous to resinous or pearly and it's streak is white.
It was named after W Wavell, the discoverer of the mineral.