WAVELLITE
Specimen wav-6
$ 40.00Dims: 3.5 x 2.4 x 1.6" (8.9 x 6.1 x 4.1 cm)
Wt: 7.4 oz. (209.6 g)
Mauldin Mountain, Montgomery County, Arkansas, U.S.A.
This lovely specimen consists of a limestone base rock that is heavily encrusted with many round, intergrown nodules of compact, acicular Wavellite crystals. These nodules do not exceed 0.6" (1.5 cm) in diameter, and most are damaged or broken. However, this enables one to easily study their interiors and internal structure, and allows one to see that their growth occurred in stages, forming two or more concentric layers. A few of the larger orbs contain 3 or even 4 layers, and all are made up of compact, fibrous crystals that are so thin and compact that it is essentially impossible to study their form. The nodules have a moderately pale green coloration on their exteriors, and their interiors vary in coloration by layer. The crystals visible due to damage possess a pearly luster, whereas the outer surfaces of the intact clusters have a luster that ranges from dull to silky. All are either opaque or dimly translucent.