Chemical Composition – Typical
| Silica SiO2 | 34-40% |
| Iron(Fe2O3+FeO) | 25-31% |
| Alumina Al2O3 | 17-21% |
| Magnesium MgO | 5-6% |
| Calcium CaO | 5.0-10.0% |
| Manganese MnO | 0-1.0% |
Physical Characteristics – Typical
| Specific Gravity | 4.0-4.1/cm3 |
| Mohs Hardness | 7.5+ |
| Acid Solubility (HCL) | <1.0% |
| Bulk density | 1.8-1.9 g/cm3 |
| Chloride | 10-15ppm(25ppm max) |
| Colour | Red & Green |
| Melting point | 1300℃ |
| Grain shape | Sub angular |
| Toxic substances | none |
| Conductivity | 25 ms/m |
Mineralogical Content – Typical
| Almandine garnet | 97-98 % |
| Quartz | ≤0.2% |
| Ilmenite | ≤0.5% |
| Others | ≤0.1% |
Available Sizes:10/20 20/40 30/60 40/60 60/90 90/120 120/180 180/240 24# 30# 36# 40# 46# 54# 60# 70# 80# 120#;