“…In case of origin 3 m, eight A-site cations are situated at the 8a (5/4, 5/4, 5/4) Wyckoff positions, the 16 B-site cations at 16d (1/2, 1/2, 1/2), while the 32 anions located at 32e (u, u, u), where u is he so-called C position parameter. 35 The u-parameter is the anion displacement form the fixed atomic position. For the 43 m origin, A-site cations are located at 8a (0, 0, 0) site, B-site cations situated at 16d (0.5, 0.5, 0.5), while the anions are situated at the 48f (u, 0.125, 0.125).…”