Home About Baxuite Ore Bauxite ore is a sedimentary rock that's rich in aluminum and is the primary source of aluminum globally. It's also a source of gallium. PRODUCT SPECIFICATIONS Total Alumina (Al2O3) 45-55% Total Silica (SiO2) 1.5-3% Alumina to Silica ratio 24-28Total Iron (Fe2O3) 12-17%Total Titanium (TiO2) 4 – 6%