واولیت

Key facts

Mineral.name

Wavellite

Mineral.category

Phosphate minerals

Mineral.image

Wavellite-162460.jpg

Mineral.caption

Wavellite cluster from Mauldin Mountain Quarries, Mauldin Mt., Montgomery County, Arkansas

Mineral.formula

Al3(PO4)2(OH,F)3·5H2O

Mineral.IMAsymbol

Wav

Mineral.strunz

8.DC.50

Mineral.system

Orthorhombic

Mineral.class

Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m)

Mineral.symmetry

Pcmn

Mineral.unit cell

a = 9.621 Å b = 17.363 Å, c = 6.994 Å; Z = 4

Mineral.color

Green to yellowish-green and greenish blue and blue. and yellow, brown, white and colorless

Mineral.habit

Spherical, radial aggregates; striated prisms; crusty to stalactitic

Mineral.cleavage

[110] perfect, [101] good, [010] distinct

Mineral.fracture

Uneven to subconchoidal

Mineral.mohs

3.5 - 4

Mineral.luster

Vitreous to resinous, pearly

Mineral.refractive

nα = 1.518 - 1.535 nβ = 1.524 - 1.543 nγ = 1.544 - 1.561

via Wikipedia infobox