Tantalaeschynite-(Tb) Thorogood G J, Avdeev M, Kennedy B J Solid State Sciences 12 (2010) 1263-1269 Structural studies of the aeschynite-euxenite transformation in the series Ln(TiTa)O6 Ln = lanthanide Locality: Synthetic _database_code_amcsd 0018927 10.977 7.414 5.2380 90 90 90 Pnma atom x y z occ Biso Tb .4596 .75 .0327 1.99 Ta .6426 .5068 .4579 .5 .60 Ti .6426 .5068 .4579 .5 .60 O1 .4746 .4576 .2721 1.50 O2 .2878 .9375 .8815 1.02 O3 .3509 .75 .4446 .96 O4 .6230 .75 .3274 2.44