| Al₂O₃+SiO₂ | Al₂O₃ | Fe₂O₃ | MgO | K₂O+Na₂O+CaO | Alii |
| > 93% | 45-50% | <1% | <0.5% | <4% | <1% |
| Res | Valor |
| Absorptio aquae (%) | <2 |
| Densitas massae (g/cm3) | 1.4-1.5 |
| Pondus specificum (g/cm³) | 2.4-2.6 |
| Volumen liberum (%) | 40 |
| Temperatura operationis (max.) (℃) | 1200 |
| Duritia Moh (scala) | >7 |
| Resistentia acidorum (%) | >99.6 |
| Resistentia alcalina (%) | >85 |
| Magnitudo | Vis contundibilis | |
| kg/particula | KN/particula | |
| 1/8" (3mm) | >35 | >0.35 |
| 1/4" (6mm) | >60 | >0.60 |
| 3/8" (10mm) | >85 | >0.85 |
| 1/2" (13mm) | >185 | >1.85 |
| ¾" (19mm) | >487 | >4.87 |
| 1" (25mm) | >850 | >8.5 |
| 1-1/2" (38mm) | >1200 | >12 |
| 2" (50mm) | >5600 | >56 |
| Magnitudo et tolerantia (mm) | ||||
| Magnitudo | VI Kalendas Ianuarias | XIII Kalendas Septembres | XIX/XXV/XXXVIII | 50 |
| Tolerantia | ± 1.0 | ± 1.5 | ± 2 | ± 2.5 |