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Boksit

Saka Wikipédia Jawa, bauwarna mardika basa Jawa
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Bauxite with a US Cent
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Bauxite with core of unweathered rock
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Boksit, Les Baux

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 tinemu sepisanan dat iki ing taun 1821 déning geologis Pierre Berthier.

Pangasil boksit

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Tabel ig ngisor iki nagara diurut miturut akèhé cadhangan boksit.

(x1000 tonne, Numbers for 2008 estimated)
Negara Prodhuksi tambang Cadhangan Dhasar cadhangan
2007 2008
Image Guinea18,00018,0007,400,0008,600,000
Image Australia62,40063,0005,800,0007,900,000
Image Vietnam30302,100,0005,400,000
Image Jamaica14,60015,0002,000,0002,500,000
Image Brasil24,80025,0001,900,0002,500,000
Image Guyana1,6001,600700,000900,000
Image India19,20020,000770,0001,400,000
Image Cina30,00032,000700,0002,300,000
Image Greece2,2202,200600,000650,000
Image Suriname4,9004,500580,000600,000
Image Kazakhstan4,8004,800360,000450,000
Image Venezuela5,9005,900320,000350,000
Image Ruslan6,4006,400200,000250,000
Image Amérikah SarékatNANA20,00040,000
Negara liya7,1506,8003,200,0003,800,000
Total donya (diganepna)202,000205,00027,000,00038,000,000

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

Rujukan

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  • 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

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