Bauxite, which is mined by the mines of MYTILINEOS, DELPHI-DISTOMON, is the basic raw material for the production of alumina and aluminium. It is a mineral deposit rock formed by a mixture of metal oxides, named after the French city of Baux, where the ore’s deposits were first found. In Greece, the most important known bauxite deposits are estimated at around 100 million tons and are located in the Mt Helikon – Mt Parnassus – Mt Giona zone. Greek bauxites are of diasporic type and are composed of 1 molecule of crystalline water per 1 molecule of alumina (aluminium oxide).