Cobaltoan dolomite from Tsumeb is impressive and not terribly rare in mediocre form. However, the color, intensity and form of this small cabinet specimen puts it into an incredible, one-of-a-kind category. The thin crust is highlighted by a hollow, botryoidal knob, measuring 2 cm in length. It has unusually good luster and the most intense magenta color I have seen in a cobaltoan dolomite from this deposit. It is simply gorgeous on a shelf...it honestly looks like it was dyed with pink food coloring. From the Tsumeb collection of Marshall Sussman, a few years ago.