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Garnet

GIC Abrasive garnet is almandite variety with composition of 3FeO, Al2O3, 3SiO2
Physical Characteristics Chemical Composition
Hardness (Mohs) 7.5 to 8 Al2O3 21.60%
Chloride 10-20 ppm (Max 25ppm) SiO2 31.00%
pH > 7 FeO 37.00%
Bulk Density 2.34 T / m3 MgO 7.40%
Specific gravity 4.1 CaO 1.84%
Melting point 12600C TiO2 0.55%
Grain shape Sub-angular MnO 0.53%
Other Characteristics Mineral Composition
Conductivity 10-15ms/m (Max 20ms/m) Garnet 97 – 99%
Radioactivity Not detectable Ilmenite < 2%
Moisture absorption Non-hydroscopic Quartz < 1%
Free Iron < 0.01%
Copper < 0.01%
Sulphur < 0.01%
Other heavy metals < 0.01%