bˈoʊθ fˈeɪzᵻz hæv ɐ bˈænd ɡˈæp ʌv ɐbˌaʊt θɹˈiː ˈiː vˈiː. ðə pɚɹˈæmɪɾɚz ʌvðə kjˈuːbɪk fˈeɪz ɑːɹ lˈɪstᵻd ɪnðɪ ˈɪnfoʊbˌɑːks.
Both phases have a band gap of about 3 eV. The parameters of the cubic phase are listed in the infobox.