Bauxite, an aluminium ore, is the world's main source of aluminium. It consists mostly of the minerals gibbsite (Al(OH)3), boehmite (γ-AlO(OH)) and diaspore (α-AlO(OH)), mixed with the two iron oxides goethite and haematite, the clay mineral kaolinite and small amounts of anatase (TiO2) and ilmenite (FeTiO3 or FeO.TiO2).[1][2] In 1821 the French geologist Pierre Berthier discovered bauxite near the village of Les Baux in Provence, southern France.[3] In 1861, French chemist Henri Sainte-Claire Deville named the mineral "bauxite".[4]
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