Dims: 2.2" x 1.9" x 0.9" (5.6 x 4.8 x 2.3 cm)
Wt: 2.61 oz. (74.2 g)
near Kolwezi, Zaire
There are actually 3 crusts of Sphaerocobaltite on this specimen, though only one is obvious at a casual glance. This obvious crust coats one face of a thick piece of flat, triangular host rock. It shows some damage mostly along one edge, but is in generally good condition. It is between 1 and 2 millimeters thick, and is composed of hundreds of tiny, intergrown, bladed crystals that all appear to be less than 1 mm long. They have a bright, almost hot-pink coloration and a subtle sparkle. There seems to be some evidence of transparence, but it is difficult to tell. Another, much thinner crust coats part of the other large face on the specimen. This crust is much thinner and is made up of nearly transparent crystals that have a fainter pink color. The third crust runs through the host rock about halfway between the other two, but angles up and intersects with the more visible crust at one corner of the specimen. Resting on top of this visible crust is a slightly damaged cluster of some of the largest malachite crystals that I have ever seen. They appear to be more bladed than needlelike, and the largest one measures at least 0.4" (1.0 cm) long and over 1 mm thick. There are several other intact crystals in the cluster, but none are nearly as large.