Dims: 3.4" x 2.7" x 1.2"(8.6 x 6.9 x 3.0 cm)
Wt: 3.96 oz.(112.4 g)
Mashamba Mine, Kolwezi, Zaire
There are 2 complete Sphaerocobaltite crystals on this specimen, and one that shows heavy cleavage. They all occur in the scalenohedral "dogtooth" form that is commonly seen in calcite. One of the complete crystals measures 0.9"(2.3 cm) in length and 0.5"(1.3 cm) in diameter- it is the largest crystal of this mineral that I have ever seen! The other complete crystal is considerably smaller, measuring 0.6"(1.5 cm) long and 0.3"(0.8 cm) in diameter. Both show what appears to be tiny amounts of damage at the tips of their terminations, but I may be wrong. The damaged crystal measures over 1"(2.5 cm) in length, but is incomplete. The crystals have a pale pink color and a pearly to waxy luster. They are translucent but cloudy. They all rest on the edge of a base rock that is covered with what appears to be a thin crust of decayed malachite. This base rock is a conglomeration of calcite and quartzite; there is a very tiny, lone quartz crystal in a small hollow in the top of the specimen.