Bauxite is an aluminium ore. It consists largely of the Al minerals gibbsite Al(OH)3, boehmite and diaspore AlOOH, together with the iron oxides goethite and hematite, the clay mineral kaolinite and small amounts of anatase TiO2. It was named after the village Les Baux-de-Provence in southern France, where it was first discovered in 1821 by geologist Pierre Berthier. Bauxites are typically classified according to their intended commercial application: abrasive, cement, chemical, metallurgical, refractory, etc. 1) Chemical composition: Al2O3: 86%Min Fe2O3: 2.0%Max K2O+Na2O: 0.4% Max B.D.: 3.10g/ccm Min Size: 0-30mm or as the request 2) Chemical composition Al2O3: 87%Min Fe2O3: 2.0%Max K2O+Na2O: 0.4% Max B.D.: 3.20g/ccm Min 3) Chemical composition Al2O3: 88%Min Fe2O3: 2.0%Max K2O+Na2O: 0.4% Max B.D.: 3.20g/ccm Min Size: 0-30mm or as the request