Cordierite yog cov ntxhia silicate, feem ntau yog lub teeb xiav lossis lub teeb liab doog, glazed luster, pob tshab rau translucent.Cordierite kuj muaj cov yam ntxwv ntawm kev ua tau zoo tshaj plaws polychromatic (tricolor), emitting lub teeb ntawm cov xim sib txawv hauv cov lus qhia sib txawv.Cordierite feem ntau yog txiav rau hauv cov duab ib txwm, thiab cov xim nrov tshaj plaws yog xiav-ntsuab.