Specifications Dead Burnt Magnesite--DBM-87/DBM-90 Dead Burnt Magnesite Specifications:-?MgO: 87 to 90% / 90% +;?CaO: 2.5% max,?SiO2: 4.5% max,?Fe2O3: 2.5% max,?Size: 0 to 3 mmor3 to 5 mm.?Packing: 1Mt Jumbo Bags.?