ʌnlˈaɪk tˈaɪ ˈoʊ tˈuː, wˌɪtʃ fˈiːtʃɚz sˈɪkskoʊˈɔːɹdᵻnət tˈaɪ ɪn ˈɔːl fˈeɪzᵻz, zɜːkˈoʊniə ænd hˈæfniə kənsˈɪst ʌv sˈɛvəŋkoʊˈɔːɹdᵻnət mˈɛɾəl sˈɛntɚz.
Unlike TiO2, which features six-coordinate Ti in all phases, zirconia and hafnia consist of seven-coordinate metal centres.