data_global
_chemical_name_mineral 'Loparite'
loop_
_publ_author_name
'Mitchell R H'
'Chakhmouradian A R'
_journal_name_full 'Physics and Chemistry of Minerals'
_journal_volume 26 
_journal_year 1999
_journal_page_first 396
_journal_page_last 405
_publ_section_title
;
 Solid solubility in the system NaLREETi2O6 - ThTi2O6
 (LREE, light rare-earth elements): experimental and analytical data
;
_database_code_amcsd 0008220
_chemical_formula_sum 'Na.45 La.34 Th.13 Ti O3'
_cell_length_a 5.4652
_cell_length_b 5.4652
_cell_length_c 7.7476
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 231.408
_exptl_crystal_density_diffrn      5.270
_symmetry_space_group_name_H-M 'I 4/m c m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  '-y,-x,1/2+z'
  '1/2-y,1/2-x,+z'
  'y,x,1/2-z'
  '1/2+y,1/2+x,-z'
  'y,-x,-z'
  '1/2+y,1/2-x,1/2-z'
  '-y,x,z'
  '1/2-y,1/2+x,1/2+z'
  'x,-y,1/2+z'
  '1/2+x,1/2-y,+z'
  '-x,y,1/2-z'
  '1/2-x,1/2+y,-z'
  'x,y,-z'
  '1/2+x,1/2+y,1/2-z'
  '-x,-y,z'
  '1/2-x,1/2-y,1/2+z'
  'y,x,1/2+z'
  '1/2+y,1/2+x,+z'
  '-y,-x,1/2-z'
  '1/2-y,1/2-x,-z'
  '-y,x,-z'
  '1/2-y,1/2+x,1/2-z'
  'y,-x,z'
  '1/2+y,1/2-x,1/2+z'
  '-x,y,1/2+z'
  '1/2-x,1/2+y,+z'
  'x,-y,1/2-z'
  '1/2+x,1/2-y,-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,1/2-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
Na   0.00000   0.50000   0.25000   0.45000   0.01077
La   0.00000   0.50000   0.25000   0.34000   0.01077
Th   0.00000   0.50000   0.25000   0.13000   0.01077
Ti   0.00000   0.00000   0.00000   1.00000   0.00937
O1   0.00000   0.00000   0.25000   1.00000   0.03546
O2   0.22400   0.72400   0.00000   1.00000   0.02153