Ball clay is another type of clay which has high plasticity compared to china clay but is not as white in colour as china clay. It is used in Ceramic Industry as a filler and mixed with China Clay for additional whiteness and increased plasticity.
DB group is renowned for providing high quality ball clay from its multiple mines across Rajasthan.
| Physical Composition | |
| Contents | Ball Clay |
| Natural Appearance | Grey |
| Fineness | Crude |
| Whiteness | 60± 1 |
| Fired Shrinkage@1220 | 16.56 |
| Water Absorption (%) | 1.87 |
| Water Plasticity (%) | 35 ± 1 |
| Dry MOR (Kg/cm2) | 10.70 |
| Fired MOR (Kg/cm2) | 511.2 |
| Moisture at 105 degree C | Natural |
| Oil Absorption | N.A. |
| PH Value | N.A. |
| Moh’s Hardness | N.A. |
| Specific Gravity | N.A. |
| Tapped Bulk Density (gms/ml) | N.A. |
| Matter Sol. In water | N.A. |
| Color Spectrometry | |
| “L” Value | 75 ± 1 |
| “a” Value | 0.02 |
| “b” Value | 9.52 |
| Chemical Composition | |
| SiO2 | 46.34 |
| MgO | 0.88 |
| Al2O3 | 36.61 |
| CaO | 0.33 |
| Fe2O3 | 0.99 |
| TiO2 | 2.00 |
| Na2O | 0.76 |
| K2O | 0.30 |
| LOI | 3.19 |