Kubbada alumina ee u adkaysata microcrystalline waa dhexdhexaad wax shiidiseed oo tayo sare leh, oo ka samaysan shay horumarsan oo la doortay, tignoolajiyada samaynta horumarsan, oo lagu kasbaday foorno heerkul sare leh.Alaabtani waxay leedahay cufnaan sare, qallafsanaan sare, xidhid hoose, xasillooni seismic wanaagsan iyo iska caabin daxalka wanaagsan.Waa dhexdhexaadinta ugu habboon ee lagu shiidi karo dhaldhalaalka, biilasha iyo budada macdanta, waxaana loo isticmaalaa sida dhexdhexaadinta wax lagu shiidi karo dhoobada iyo miraha kubbadda sibidhka., Dahaarka, refractories, budada macdanta inorganic iyo warshadaha kale.