Certified values
Al2O3 ............................. 0.055 %
MgO.............................. 21.59 %
SrO................................ 0.024 %
CaO............................... 30.61 %
MnO................................ 0.03 % TiO2 ............................... 0.002 %
Fe2O3 .............................. 0.03 %
SiO2 .............................. 0.379 %
LOI* ................................. 46.8 %
*Loss On Ignition