Boksit

Bauxite with a US Cent

Bauxite with core of unweathered rock

Boksit utawa bauksit, iku wiji alumunium sing paling wigati. Dat iki dumadi akèh-akèhé saka bahan logam gibbsite Al(OH)₃, boehmite γ-AlO(OH), lan alumunium dioksida hidroksida (diaspore) α-AlO(OH), bebarengan karo oksida wesi goethite lan hematite, lempung mineral kaolinite lan sethithik anatase TiO₂. Dat iki dijenengaké saka jeneng désa Les Baux ing Prancis kidul, papan ditemokaké sepisanan dat iki ing taun 1821 déning geologis Pierre Berthier.

Pangasil boksit

Tabel ig ngisor iki negara diurut miturut akèhé cadhangan boksit.

(x1000 tonne, Numbers for 2008 estimated)

Negara	Prodhuksi tambang		Cadhangan	Dhasar cadhangan
	2007	2008
Guinea	18,000	18,000	7,400,000	8,600,000
Australia	62,400	63,000	5,800,000	7,900,000
Vietnam	30	30	2,100,000	5,400,000
Jamaica	14,600	15,000	2,000,000	2,500,000
Brasil	24,800	25,000	1,900,000	2,500,000
Guyana	1,600	1,600	700,000	900,000
India	19,200	20,000	770,000	1,400,000
Cina	30,000	32,000	700,000	2,300,000
Greece	2,220	2,200	600,000	650,000
Suriname	4,900	4,500	580,000	600,000
Kazakhstan	4,800	4,800	360,000	450,000
Venezuela	5,900	5,900	320,000	350,000
Rusia	6,400	6,400	200,000	250,000
Amérika Sarékat	NA	NA	20,000	40,000
Negara liya	7,150	6,800	3,200,000	3,800,000
Total donya (diganepna)	202,000	205,000	27,000,000	38,000,000

Sumber: U.S. Geological Survey, Mineral Commodity Summaries, January 2009 Cithakan:Industry country lists

Referensi

• Bardossy, G. (1982): Karst Bauxites. Bauxite deposits on carbonate rocks. Elsevier Sci. Publ. 441 p.
• Bardossy, G. and Aleva, G.J.J. (1990): Lateritic Bauxites. Developments in Economic Geology 27, Elsevier Sci. Publ. 624 p. ISBN 0-444-988

Pranala njaba

• USGS Minerals Information: Bauxite
• Mineral Information Institute