Bauxite
WebBauxite (Aluminium) Colour: Shades of brown, redbrown, and yellowbrown. Name: After the locality at Baux (or Beaux), near St. Reny, BouchesduRh ne, France. Predominantly hydrated aluminium oxides with iron oxides, kaolinite and other impurities; almost always a residual soil rather than a sediment. Note that ironrich sediments are covered