Wavellite, Al3(PO4)2(OH,F)3.5(H2O) (Hydrated Aluminium Phosphate Hydroxide), is a mineral that demonstrates the classic botryoidal crystal habit. It produces a unique effect when the globules are imbedded in rock and then fractured. The result is a radial cluster which reflects light to produce a sparkling pinwheel effect.
Description
: Hundreds of rounded globules of pale green Wavellite crowd together on one side of an angular matrix. The tiny spheres range in size from 3mm down to a size which can only be appreciated when magnified. The luster is a wonderfully silk-like and the specimen is very attractive when brightly illuminated. The specimen is rare because all the globules are intact and none are damaged.
