Concept information
Terme préférentiel
bauxite
Définition
- Bauxite is a sedimentary rock with a relatively high aluminium content. It is the world's main source of aluminium and gallium. Bauxite consists mostly of the aluminium minerals gibbsite (Al(OH)3), boehmite (γ-AlO(OH)) and diaspore (α-AlO(OH)), mixed with the two iron oxides goethite (FeO(OH)) and haematite (Fe2O3), the aluminium clay mineral kaolinite (Al2Si2O5(OH)4) and small amounts of anatase (TiO2) and ilmenite (FeTiO3 or FeO.TiO2). Bauxite appears dull in luster and is reddish-brown, white, or tan in color. It is formed by continental weathering in a warm, humid climate. (Adapted from: https://en.wikipedia.org/wiki/Bauxite)
Concept générique
Traductions
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français
URI
http://data.loterre.fr/ark:/67375/QX8-W1B9Q693-4
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