Dims: 2.0 x 1.8 x 1.2" (5.1 x 4.5 x 3.1 cm)
Wt: 1.0 oz. (28 g)
Grandview Mine, Coconino County, Arizona, U.S.A.
A crust made up of countless tiny, intergrown Brochantite rests on the copper-bearing base of this hand specimen. The crystals are too small to effectively study, but the crust appears to be in very good condition. Their monoclinic tabular form appears to be good, and all have the classic deep green color and a pearly luster. They rest on a bed of massive and fibrous cyanotrichite, most of which is matted down. This layer in turn rests on a layer of very soft shale or mudstone.