Fused  Magnesia        Index
MgO % not less than  Al2O3% no more than CaO % SiO2% no more than  Fe2O3 %no more than   Bulk density g/cm3  not less than   Loss on lgnition% no more than  
Fused Magnsia FM-96B 95.5 0.2 no mare than 1.5  2.0 0.8 3.45 0.3
FM-97B 96.5 0.2 no more than 1.2  1.2 0.5 3.50 0.2
FM-98B 97.5 0.2 no more than 1.0 1.0 0.5 3.50 0.2
F.M(CaO/SiO2 not less than  2) FM-96A 95.5 0.3 not less than  2.0 1.0 0.8 3.45 0.3
FM-97A 96.5 0.2 not less than  1.2 0.6 0.5 3.50 0.2
FM-98A 97.5 0.2 not less than  0.7 0.35 0.35 3.50 0.1

Caustic Calcined Magnestie  
QM-96 QM-95 QM-94 QM-93 QM-92 QM-90a QM-90b QM-87a QM-87b
Chemical Composition% MgO min 96.00 95.00 94.00 93.00 92.00 90.00 90.00 87.00 87.00
SiO2 max 0.50 1.00 2.00 3.00 3.00 4.00 4.00 5.00 5.00
CaO max 1.00 1.50 2.00 2.00 2.00 2.00 2.50 2.00 3.50
Fe2O3 max 0.70 0.75 0.90 0.90 1.00 1.20 1.20 1.50 1.50
MaxL.O.I. 2.00 3.00 4.00 4.00 5.00 6.00 6.00 7.00 7.00
Grain Size From 60 mesh to 200 mesh 95% min passing through  325mesh 90% min                                                                  
passing  through  0.3-0.8mm  0.3-2mm  0-5mm90%min passing through

Caussic Calcined Magnesite Bripuettes            Brand
MgO% SiO2% not more than  CaO%   not more than      % Loss on lgnition not more than  

   Caustic Caleined Magnesite Briquettes less than 70.0 3.0 3.0 30.0

Middle Grade Magnesite Briquettes not less than  70.0 1.5 2 25