| PROPERTY | UNIT | 3 Star |
| Whiteness | % | 90 |
| Average Particle Size | microns | 6-8 |
| Surface Area | m2/gm | 6-10 |
| Sp. Gravity | – | 2.7-2.8 |
| Bulk Density* | gm/cc | 0.40-0.48 |
| Water Absorption | % | 34-42 |
| pH Value | – | 6.0-7.5 |
| Moisture | % max. | 0.4 |
| SiO2 | % max. | 60-65 |
| Al2O3 | % max. | 28-30 |
| Loss on Ignition | % max. | 8.5 |
| Residue on 450 mesh | % max. | 0.5 |
| Packing | kgs/bag | 25 |
