Dims: 2.0 x 1.4 x 1.5" (5.1 x 3.6 x 3.8 cm)
Wt: 2.1 oz. (59.7 g)
Mashamba Mine, Kolwezi, Zaire
This small hand specimen consists of a crust that is made up of at least 20 trigonal scalenohedral Sphaerocobaltite crystals that are intergrown at their bases. These crystals achieve lengths of up to 0.8" (2.0 cm) and are in moderately good condition, as several of them are damaged and a few are incomplete. Their form is excellent, however, with well-defined edges and clean faces that possess a dull waxy luster. All have a pale pink coloration and are translucent and apparently clear, but their dull luster provides considerable interference. They are clear enough, however, so that one can see some tiny nodules that are trapped within a few of the crystals. I have no idea what these nodules are made of. They rest on a bed of what appears to be shale that is laden with a considerable amount of copper or malachite, giving it a pale green coloration.