1. Adkeydka taayirrada wax lagu shiidi karo ee cad-cad ayaa ka sarreeya qalabka kale sida corundum brown iyo corundum madow, taasoo ka dhigaysa inay aad ugu habboon yihiin farsamaynta birta kaarboonka, birta la demiyay, iwm.
2. Shaagagga shiida ee corundum cad wuxuu leeyahay iska caabin kulayl xoog leh, kulaylka dhasha inta lagu jiro shaqada waqti-dheer waa mid yar, taas oo aan keeni doonin dhaawacyo shaqada la xiriira.
3. Shaagagga wax lagu shiido corundum cad wuxuu leeyahay awood goyn oo xooggan waxaana laga dhigi karaa shaagag weyn oo biyaha lagu shiidi karo oo loogu talagalay habaynta biyaha waaweyn.
4. Shaagagga wax lagu shiido corundum cad kuma jiro walxaha waxyeellada leh sida birta sulfide, mana soo saari doono ur sun ah.Wax dhib ah uma geysan doonto deegaanka shaqada ama jirka shaqaalaha.
Marka lagu daro faa'iidooyinka kor ku xusan, maaddada corundum cad waxay sidoo kale leedahay cillado gaar ah, ka dib oo dhan, ma aha bini'aadamka ama walxuhu maaha kuwo qumman.Adkaynta corundum cad si gaar ah uma fiicna, qaybaha naaxinta ayaa laga yaabaa inay jebiyaan inta lagu jiro habka goynta, laakiin waxaa lagu wanaajin karaa iyada oo lagu daro binder.
Waqtiga boostada: Abriil-28-2023