Loparite Mitchell R H, Chakhmouradian A R, Woodward P M Physics and Chemistry of Minerals 27 (2000) 583-589 Crystal chemistry of perovskite-type compounds in the tausonite-loparite series, (Sr1-2xNaxLax)TiO3 Sample: x = 0.30 _database_code_amcsd 0008452 5.5025 5.5025 7.7701 90 90 90 I4/mcm atom x y z occ SrA 0 .5 .25 .40 NaA 0 .5 .25 .30 LaA 0 .5 .25 .30 Ti 0 0 0 O1 0 0 .25 O2 .229 .729 0