bauxite mining earnings

Bauxite is a sedimentary rock with a relatively high aluminium content It is the worlds main source of aluminium Bauxite consists mostly of the aluminium minerals gibbsite AlOH3 boehmite AlOOH and diaspore AlOOH mixed with the two iron oxides goethite and haematite the aluminium clay mineral kaolinite and small amounts of anatase TiO2 and ilmenite FeTiO3 or FeOTiO2