Description
AVERAGE CHEMICAL COMPOSITION
SiO2 (as silicate) 35 % to 37%
Al2O3 20 % to 22%
Fe2O3 1.8 % to 2.1%
FeO 29 % to 31%
Total Fe 6.3% to 7.3 %
MnO 1%
CaO 2%
MgO 6.0 to 6.3%
PHYSICAL CHARACTERISTICS:
> Specific Weight : 4.1 g/cm3
> Average Bulk : 2.4 g/cm3
> Hardness : 8 (Mohs Scale)
MINERALOGICAL COMPOSITION:
> Garnet (Almandite) : 97 – 98%
> Ilmenite : 1-2%
> Quartz : 1/2 %
> Others : 1/2%