ðə kˈɑːmpaʊnd ɪz pˌɑːlɪmˈoːɹfɪk, æɾ ˈæmbiənt tˈɛmpɹɪtʃɚz ɪɾ ɛɡzˈɪsts ɪn ˌɔːɹθoːɹhˈɑːmbɪk pˌiːbˈiː sˌiːˈɛl tˈuː tˈaɪp fˈɔːɹm, wˌaɪl æt hˈaɪ tˈɛmpɹɪtʃɚz ɪɾ ɪz kjˈuːbɪk flˈʊɹɹaɪt tˈaɪp.
The compound is polymorphic, at ambient temperatures it exists in orthorhombic (PbCl2 type) form, while at high temperatures it is cubic (Fluorite type).