data_global
_chemical_name_mineral 'Tantalaeschynite-(Tb)'
loop_
_publ_author_name
'Thorogood G J'
'Avdeev M'
'Kennedy B J'
_journal_name_full 'Solid State Sciences'
_journal_volume 12 
_journal_year 2010
_journal_page_first 1263
_journal_page_last 1269
_publ_section_title
;
 Structural studies of the aeschynite-euxenite transformation in
 the series Ln(TiTa)O6 Ln = lanthanide
;
_database_code_amcsd 0018927
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Tb (Ta Ti) O6'
_cell_length_a 10.977
_cell_length_b 7.414
_cell_length_c 5.2380
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 426.287
_exptl_crystal_density_diffrn      7.538
_symmetry_space_group_name_H-M 'P n m a'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,z'
  '-x,1/2+y,-z'
  '1/2-x,1/2+y,1/2+z'
  '1/2+x,1/2-y,1/2-z'
  '1/2+x,y,1/2-z'
  '1/2-x,-y,1/2+z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Tb   0.45960   0.75000   0.03270   1.00000   0.02520
Ta   0.64260   0.50680   0.45790   0.50000   0.00760
Ti   0.64260   0.50680   0.45790   0.50000   0.00760
O1   0.47460   0.45760   0.27210   1.00000   0.01900
O2   0.28780   0.93750   0.88150   1.00000   0.01292
O3   0.35090   0.75000   0.44460   1.00000   0.01216
O4   0.62300   0.75000   0.32740   1.00000   0.03090