Tanteuxenite-(Tm) 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 0018929 14.5706 5.5339 5.1832 90 90 90 Pbcn atom x y z occ Biso Tm 0 .2324 .25 .79 Ti .1676 .3235 .8222 .5 1.00 Ta .1676 .3235 .8222 .5 1.00 O1 .9087 .5637 .4685 .72 O2 .0867 .0926 .9168 .58 O3 .2590 .1381 .6519 1.50