| Weight used | 1000 kg |
| Chemical species | in % wt./wt |
| Al2O3 | 18.76 |
| Fe2O3 | 44.38 |
| CaO | 11.88 |
| SiO2 | 6.13 |
| TiO2 | 5.54 |
| Na2O | 2.20 |
| H2O(cry) | 9.77 |
| Moisture | 1.00 |
| Total | 99.66 |