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 = 0.40 _database_code_amcsd 0008454 5.4882 5.4882 13.442 90 90 120 R-3c atom x y z occ Biso SrA 0 0 .25 .20 .89 NaA 0 0 .25 .40 .89 LaA 0 0 .25 .40 .89 Ti 0 0 0 1.0 O .533 0 .25 1.3