Bauxite
The most common of these compounds is Bauxite, or Aluminium Ore which contains large quantities of Aluminium Oxide. Typically this is a combination of Aluminium and Oxygen in the formula There are also the impurities Fe2O3 and SiO2, amongst others, present in Bauxite, which have to be removed in the Bayer Process in the production of pure aluminium. Usually, bauxite ore is heated ...