| Al2O3+SiO2 | Al2O3 | Fe2O3 | MgO | K2O+Na2O +CaO | Ena |
| 93% | 45-50% | <1% | <0.5% | <4% | <1% |
| Kanthu | Mtengo |
| Kumwa madzi (%) | <2 |
| Kuchulukana (g/cm3) | 1.4-1.5 |
| Kukoka kwapadera (g/cm3) | 2.4-2.6 |
| Voliyumu yaulere (%) | 40 |
| Kutentha kwa ntchito.(max) (℃) | 1200 |
| Kuuma kwa Moh (mulingo) | > 7 |
| Kukana kwa Acid (%) | > 99.6 |
| Kukana kwa alkali (%) | > 85 |
| Kukula | Kuphwanya mphamvu | |
| Kg/chinthu | KN/chinthu | |
| 1/8”(3mm) | > 35 | > 0.35 |
| 1/4 "(6mm) | > 60 | > 0.60 |
| 3/8”(10mm) | > 85 | > 0.85 |
| 1/2”(13mm) | > 185 | > 1.85 |
| 3/4 "(19mm) | > 487 | > 4.87 |
| 1”(25mm) | > 850 | > 8.5 |
| 1-1/2”(38mm) | > 1200 | > 12 |
| 2”(50mm) | > 5600 | > 56 |
| Kukula ndi kulolerana (mm) | ||||
| Kukula | 3/6/9 | 9/13 | 19/25/38 | 50 |
| Kulekerera | ± 1.0 | ± 1.5 | ± 2 | ± 2.5 |