What is bauxite?It is a mixture of aluminium oxides and hydroxides with a hardness of 1 to 3 and a density of 2.5 to 3.5 g/cm³.Its chemical formula is usually 'Al2O3NH2O'. However, the formula may vary as the minerals in it differ.Properties of BauxiteBauxite, consisting of aluminum oxide and minera..
Gibbsite, the mineral aluminum hydroxide [Al(OH)3] an important constituent of bauxite (q.v.) deposits, particularly those in the western hemisphere, where it occurs as white, glassy crystals, earthy masses, or crusts. In significant deposits it is of secondary origin, but small-scale hydrothermal s..