Twelve Chatoyant Malachite SpecimensDemocratic Republic of the Congo Twelve malachite specimens with various growth structures such as botryoidal, fibrous, or both in various hues of green, intense green, black and olive green, most with chatoyancy effect. The largest specimen, measuring 10 x 9 x 2 in ; and the smallest specimen, measuring 5 x 7 x 3 in . (12) Each offered on a custom-fitted black stand.