Dims: 2.6 x 2.4 x 1.7 " (6.8 x 5.8 x 4.5 cm)
Wt: 6.35 oz (180.2 g)
Mashamba Mine, Shaba, Zaire
This hand specimen exhibits a large cuprite crystal against a crust of green plancheite. The cuprite has excellent red fire when illuminated and viewed properly. This is also the easiest way to identify the myriad other tiny cuprite crystals in or on the host matrix - they, too, show an intense red flash from certain angles. There are also crystals of a pale yellow transparent mineral which looks like barite, but I cannot be sure.