| Chemical Formula | CaMg(CO3)2 |
| Particle size | 500 mesh |
| Specific gravity | 2.85 - 2.95 |
| pH | 8 - 9.5 |
| Moisture content | < 0.5% |
| Calcium carbonate (CaCO3) content | 55 - 60% |
| Magnesium carbonate (MgCO3) content | 35 - 40% |
| Silica (SiO2) content | < 2% |
| Iron oxide (Fe2O3) content | < 0.5% |
| Aluminum oxide (Al2O3) content | < 0.5% |
| Loss on ignition (LOI) | < 45% |
| Hardness | 3.5 - 4.0 |
| Color | White or gray |
| Odor | Odorless |
| Solubility | Insoluble in water |