Kubbada dhoobada alumina waa dhexdhexaadiyaha wax lagu shiidi karo ee kubbadda, qalabka wax lagu shiidi karo dheriga, oo ku habboon in la shiido dhaldhalaalka dhoobada ah, rinjiga, walxaha dib-u-celinta, sibidhka, warshadda korontada, dhalooyinka, warshadaha kiimikada, mashiinnada cuntada.
| Walxaha | Unug | Tusmada | ||||||||||||
| Summada | Kubadda shiida 92 | Kubbada shiida 95 | ||||||||||||
| Halabuurka Kiimikada | Al2O3 | % | 92.0min | 95.0min | ||||||||||
| SiO2 | % | 5.0max | 3.0max | |||||||||||
| Fe2O3 | % | 0.1max | 0.1max | |||||||||||
| NaO2 | % | 0.4max | 0.25max | |||||||||||
| Cufnaanta runta ah | g/cm3 | 3.6 daq | 3.68 daqiiqo | |||||||||||
| Naxdin | ‰ | 0.1max | 0.07max | |||||||||||
| Mohs adag | --- | 9.00 daqiiqo | ||||||||||||
| Midabka | --- | Caddaan | ||||||||||||
| Dhexroorka | mm | Ф10 | Ф15 | Ф20 | Ф25 | Ф30 | Ф40 | Ф50 | Ф60 | Ф70 | 80 | Ф90 | ||
| leexasho | mm | ±1 | ±1 | ±1 | ±1.5 | ±1.5 | ±2 | ±2 | ±2 | ±3 | ±3 | ±3 | ||