Dims: 4.8 x 3.1 x 1.8" (12.2 x 7.9 x 4.5 cm)
Wt: 11.3 oz. (319 g)
Bertha Mine, Dugway District, Tooele County, Utah, U.S.A.
This cabinet specimen consists of scores of small, curved, crystalline Chalcanthite tendrils that extend from a dull, dark brown base rock. These tendrils are only in fair condition at best, as considerable breakage and crushing damage is visible. The tendrils do not generally exceed 0.5" (1.3 cm) in length and show the common, curved parallel structures. They have the characteristic bright blue color and a pearly luster, and are generally translucent.