data_global
_chemical_name_mineral 'Beta - fergusonite-(Ce)'
loop_
_publ_author_name
'Santoro A'
'Marezio M'
'Roth R S'
'Minor D'
_journal_name_full 'Journal of Solid State Chemistry'
_journal_volume 35 
_journal_year 1980
_journal_page_first 167
_journal_page_last 175
_publ_section_title
;
 Neutron powder diffraction study of the
 structures of CeTaO4, CeNbO4, and NdTaO4
;
_database_code_amcsd 0013406
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Ce Nb O4'
_cell_length_a 5.5350
_cell_length_b 11.3991
_cell_length_c 5.1590
_cell_angle_alpha 90
_cell_angle_beta 94.60
_cell_angle_gamma 90
_cell_volume 324.454
_exptl_crystal_density_diffrn      6.081
_symmetry_space_group_name_H-M 'I 1 2/a 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  '1/2-x,y,-z'
  '-x,1/2+y,1/2-z'
  '1/2+x,-y,z'
  '+x,1/2-y,1/2+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_U_iso_or_equiv
Ce   0.25000   0.12020   0.00000   0.00519
Nb   0.25000   0.64700   0.00000   0.00507
O1   0.01290   0.71710   0.20310   0.00861
O2   0.89990   0.45530   0.23990   0.00760