Ufa wonyezimira wonyezimira kapena wachikasu, wotsekemera komanso wapoizoni wokhala ndi mphamvu yokoka ya6.1 ndi refractive index 2.25.Siungathe kusungunuka m'madzi, koma ukhoza kusungunuka mu hydrochloric acid ndi nitric acid. Imasanduka imvi ndi yakuda pa 200 ℃ chikasu pa 450 ℃, ndipo ili ndi deductibility.