| Al2O3+SiO2 | Al2O3 | Fe2O3 | MgO | K2O+Na2O +CaO | Feadhainn eile |
| > 93% | 45-50% | <1% | <0.5% | <4% | <1% |
| Nì | Luach |
| Gabhail uisge (%) | <2 |
| Dlùths mòr (g/cm3) | 1.4-1.5 |
| Gravity sònraichte (g/cm3) | 2.4-2.6 |
| Meud saor (%) | 40 |
| Teòthachd obrachaidh (as àirde) (℃) | 1200 |
| Cruas Moh (sgèile) | >7 |
| Frith-aghaidh searbhag (%) | >99.6 |
| Frith-aghaidh alcaileach (%) | >85 |
| Meud | Neart brùthaidh | |
| Kg/mìrean | KN/mìrean | |
| 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 |
| Meud agus fulangas (mm) | ||||
| Meud | 3/6/9 | 9/13 | 19/25/38 | 50 |
| Fulangas | ± 1.0 | ± 1.5 | ± 2 | ± 2.5 |