- vigae vya pembe sita, mraba, mstatili vyenye dimples
- kauri yenye kufuli
- silinda ya kauri
- kauri zisizo za kawaida maalum
- mikeka ya vigae vya kauri
| (Urefu*upana*unene) |
| 40*40*25 mm |
| 40*20*25 mm |
| 30*30*25 mm |
| 30*15*25 mm |
| 40*40*40 mm |
| 40*40*50 mm |
| 40*20*50 mm |
| 40*40*10 mm |
| 38*38*38 mm |
| 32*32*32 mm |
| 32*32*16 mm |
| Saizi zaidi na saizi maalum zinazokubalika. Mchemraba wote wa kauri wa alumina wenye ndimi na mifereji. |
| Al2O3 | SiO2 | CaO | MgO | Na2O |
| 92~93% | 3~6% | 1~1.6% | 0.2~0.8% | 0.1% |
Sifa za kimwili:
| Mvuto maalum (g/cc) | >3.60 |
| Unyevu unaoonekana (%) | 0 |
| Nguvu ya Kunyumbulika (sentigredi 20, Mpa) | 334 |
| Nguvu ya kubana (sentigredi 20, Mpa) | 1770 |
| Ugumu wa Rockwell (kg/mm 2) | 918 |
| Ugumu wa Vickers (hv) | >750 |
| Ugumu wa Moh (kipimo) | ≥9 |
| Upanuzi wa Joto (sentigredi 20-800, sentigredi x10-6/digrii) | 8.30 |
| Ukubwa wa Fuwele (μm) | 1.3~3.0 |