Dims: 3.6" x 2.7" x 1.5" (9.1 x 6.9 x 3.8 cm)
Wt: 5.0 oz. (140.5 g)
Musonoie Mine, Shaba Province, Zaire
Though there are areas of noticeable damage on this hand speicmen, most of the crust of intergrown Torbernite blades that rest on it are in excellent condition. The bladed crystals have a tetragonal tabular form that ranges from square-shaped to round, flat platelets, and possess a pearly luster. They do not exceed 0.3" (8 mm) in diameter. All have the standard forest-green coloration that is characteristic of this mineral and are dimly translucent to dimly transparent, depending on their compactness and intergrowth. They rest on what appears to be a quartzite base rock that is covered by a thin layer of a crumbly brown- and black-colored substance that is likely a product of another mineral's decay.