Single crystal corundum akupera gudumu

Poyerekeza ndi brown corundum ndi white corundum, single crystal corundum imakhala ndi kuuma kwakukulu, kulimba, mawonekedwe amtundu umodzi wa kristalo, komanso kukana mwamphamvu kugawanika.

Mtundu wa single crystal corundum ndi wonyezimira wachikasu, ndipo mtundu wa mankhwala ndi hexagonal crystal