Dims: 4.7x2.9x2.0" (12.1x7.4x5.0 cm)
Wt: 9.8 oz (277 g)
Kalukaluku Mine, Katanga Proirng, Congo
This specimen is mostly soapstone by weight, and a cavity in the original rock is lined with malachite, which now covers most of the top surface - only part of the cavity still exists as one. The malachite is bright green, and consists of mossy clusters of fine green crystals which have a good sheen. Inside the cavity, there are many radiating clusters of malachite crystals composed of fine acicular needles. There is also a black mineral present, which I believe to be motramite.