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Most of the world's bauxite deposits can be found within 1 to 20 metres (3 ft 3 in to 65 ft 7 in) of the earths surface. [21] [22] Strip mining is the most common technique used for extracting shallow bauxite. [22] This process involves removing the vegetation, top soil, and overburden to expose the bauxite ore. [22]
Bauxite forms by the weathering of aluminum-rich and silica-poor rocks in hot, humid, climates, at places with good drainage. Under the proper conditions, weathering disintegrates the aluminium silicate minerals, and dissolves and removes the silica, creating bauxite. The mined US bauxite deposits have all been in the southeastern United States.
2023 bauxite production and reserves (thousands of tons) [1] Country Production Reserves World: 400,000: 30,000,000
Bauxite is a raw material used primarily in the production of aluminium. The bauxite ore is refined into alumina before being smelted into aluminium. [3] Australia is known for its high-grade ore, especially in the Weipa and Gove deposits. [2] The quality of bauxite ore is determined by its available alumina (Al 2 O 3) content.
Bauxite [7] Australia Guinea ... List of countries by iron ore production: Lithium ...
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The Mediterranean Bauxite Province is a major region of high-quality bauxite ores that stretches for 3,000 km along the northern shore of the Mediterranean Sea from Spain to Turkey, encompassing parts of southern France, Italy, countries of ex-Yugoslavia, and Greece. The province covers an area of about 2 million km 2.
Aluminium in Africa originates from bauxite, and within Africa is primarily found in Guinea, Mozambique and Ghana. [1] Guinea is by far the biggest producer in Africa, and is a world leader in bauxite production. [2] There are many companies involved in the aluminium trade in Africa.