Attributes . 9% Silicon Di Oxide (SiO2), 16% Manganese Oxide (MnO), 2% Magnesium Oxide (MgO), 11% Calcium Fluoride (CaF2), 2% Sodium Oxide (Na2O), 45% Aluminum Oxide (Al2O3), 1% Calcium Oxide (CaO), 9% Titanium Di Oxide (TiO2), 6 % Metal Alloys . Names