Katanga was one of the four large provinces created in the Belgian Congo in 1914. It was one of the eleven provinces of the Democratic Republic of the Congo between 1966 and 2015, when it was split in
Malachite specimen, showing the original botryoidal form and a polished face of the opposite half of the specimen. Mines in the vicinity of Kolwezi supply much of the polishing-grade malachite in the world.