Waa maxay farqiga u dhexeeya corundum iyo aluminium?

Fiid wanaagsan, corundum waa magac caadi ah oo loogu talagalay aluminium, sida corundum crucibles ee loo isticmaalo heerkulka sare ee qalabka kiimikada, iyo kubbadaha alumina waxaa sidoo kale loo yaqaan kubbadaha corundum ee milling ball planetary ee qaybo adag. Alumina-ka adag waa mid adag oo adkaysi u leh ka dib marka la isku daro.