Ko te corundum ma ka mahia i raro i nga tikanga pāmahana teitei i runga ake i te 2000 nga nekehanga.Na roto i nga mahi maha tae atu ki te kuru, te hanga me te tatari, he pai ake te ahua me te pakeke hei taonga motuhake e whakamahia nuitia ana.Ko te corundum ma ehara i te mea teitei anake te pakeke, engari he pakarukaru hoki te kakano, he kaha ki te tapahi mana.He pai hoki te mahi i roto i te whakamaarama, te whakakoi i a koe ano, te mau atete me te kawe werawera.I tenei wa, he aukati ki te waikawa me te waikura alkali me te wera nui.No reira, he mea tino uaua, he tino pai rawa atu nga taonga o te corundum ma.
Ko nga ahuatanga o te tinana
| Te pakeke | 9.0 moha |
| Tae | ma |
| Te ahua o te witi | koki |
| Te rewa | ca.2250 °C |
| Te pāmahana ratonga teitei | ca.1900 °C |
| Te taumahatanga motuhake | ca.3.9 g/cm3 |
| Kiato rahi | ca.3.5g/cm3 |
Te tātari tinana angamaheni
| Tonotono Konumina Konumia Ma | Puka maKonumina paura |
| Al2O3 | 99.5% | 99.5% |
| Na2O | 0.35% | 0.35% |
| Fe2O3 | 0.1% | 0.1% |
| SiO2 | 0.1% | 0.1% |
| CaO | 0.05% | 0.05 % |
NGA RAHI E WAWAIA
Tonotono konumohe whakakotahi ma
| PEPA | Rahi witi Toharite(μm) |
| F 020 | 850 – 1180 |
| F 022 | 710 – 1000 |
| F 024 | 600 – 850 |
| F 030 | 500 – 710 |
| F 036 | 425 – 600 |
| F 040 | 355 – 500 |
| F 046 | 300 – 425 |
| F 054 | 250 – 355 |
| F 060 | 212 – 300 |
| F 070 | 180 – 250 |
| F 080 | 150 – 212 |
| F 090 | 125 – 180 |
| F 100 | 106 – 150 |
| F 120 | 90 – 125 |
| F 150 | 63 – 106 |
| F 180 | 53 – 90 |
| F 220 | 45 – 75 |
| F240 | 28 – 34 |