Bauxite is a rock that is most frequently found in tropical or subtropical areas and created from the reddish clay element called laterite soil. Alumina, silica, iron oxides, and titanium dioxide make up majority of the ingredients in bauxite. Chemical Specification: Aluminum Oxide (Al2O3 ) 51.1 % 50.0 % min. Silicon Dioxide (SiO2) 9.5 % 12 % max. Titanium Dioxide (TiO2) 3.1 % 3.5 % max. Iron Oxide (Fe2O3) 1.1 % 1.75 % max. Alkalis (Na2O + K2O) 0.03 % Calcium Oxide (CaO) 0.02 % Magnesium Oxide (MgO) 0.02 % Size: 74MESH/100MESH/200MESH/0-1MM/1-3MM/3-5M