Kaolinite suna ne da ke nufin wani nau'in ma'adinai na yumbu wanda aka siffanta shi da farar fata ko launin launinsa, da kuma lallausan nau'insa mai laushi. An haɗa shi da farko na kaolinite na ma'adinai, wanda shine silicate na aluminum hydrated.Kaolinite ana amfani dashi sosai a cikin aikace-aikacen masana'antu daban-daban, ciki har da yin takarda, yumbu, refractories, da wasu samfurori daban-daban. Ana kuma amfani da shi azaman filler ko rufi a cikin fenti, robobi, da sauran abubuwa, da kuma yadda za a iya haifar da halayen halayen sunadarai daban-daban.