| Mynegai | Uned | Data |
| Al2O3 | % | ≥65 |
| Fe2O3 | % | ≤1.6 |
| Cyfaint mandwll | % | ≤24 |
| Cryfder cywasgol | kg/cm2 | ≥ 900 |
| Gwrthdrawoldeb | ℃ | ≥1800 |
| Dwysedd swmp | kg/m3 | ≥1386 |
| Disgyrchiant penodol | kg/m3 | ≥2350 |
| Gwrthdraenoldeb ℃ o dan lwyth o 2kg/cm2 | ℃ | ≥1500 |
| LOI | % | ≤0.1 |