Mineral industry of Africa Mineral industry of Africa The mineral industry of Africa is the largest mineral industries in the world. Africa is the second largest continent, with 30 million km² of land, which implies large quantities of resources. For many African countries, mineral exploration and production constitute significant parts of their economies and remain keys to economic growth. Africa is richly endowed with mineral reserves and ranks first or second in quantity of world reserves of bauxite, cobalt, industrial diamond, phosphate rock, platinum-group metals (PGM), vermiculite, and zirconium. Gold mining is Africa's main mining resource. The Central African Mining and Exploration Company (CAMEC),
Sikorsky S-39 Sikorsky S-39 The Sikorsky S-39 was an American light amphibious aircraft produced by Sikorsky Aircraft during the early 1930s. The S-39 was a smaller, single-engine version of the S-38. Filmmakers Martin and Osa Johnson used a giraffe-patterned S-39 "Spirit of Africa", with companion zebra-striped S-38 "Osa's Ark", to explore Africa extensively, making safari movies and books. One example of the S-39 was acquired by the United States Army Air Corps in 1932, given the designation Y1C-28. It was evaluated for use in coastal patrol and light transport roles; in 1934 it was redesignated C-28 and assigned as a liaison aircraft