data_global
_chemical_name_mineral 'Daqingshanite-(Ce)'
loop_
_publ_author_name
'Hughes J M'
'Yunxiang N'
_journal_name_full 'Mineralogical Magazine'
_journal_volume 58 
_journal_year 1994
_journal_page_first 493
_journal_page_last 496
_publ_section_title
;
 A high-precision crystal structure refinement of daqingshanite-(Ce)
 from Nkombwa Hill carbonatite, Zambia
;
_database_code_amcsd 0014507
_chemical_compound_source 'Nkombwa Hill carbonatite, Zambia'
_chemical_formula_sum 'Sr3 Ce P C3 O13'
_cell_length_a 10.073
_cell_length_b 10.073
_cell_length_c 9.234
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 811.406
_exptl_crystal_density_diffrn      4.162
_symmetry_space_group_name_H-M 'R 3 m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '2/3+x,1/3+y,1/3+z'
  '1/3+x,2/3+y,2/3+z'
  'x,x-y,z'
  '2/3+x,1/3+x-y,1/3+z'
  '1/3+x,2/3+x-y,2/3+z'
  '-y,-x,z'
  '2/3-y,1/3-x,1/3+z'
  '1/3-y,2/3-x,2/3+z'
  '-x+y,y,z'
  '2/3-x+y,1/3+y,1/3+z'
  '1/3-x+y,2/3+y,2/3+z'
  '-y,x-y,z'
  '2/3-y,1/3+x-y,1/3+z'
  '1/3-y,2/3+x-y,2/3+z'
  '-x+y,-x,z'
  '2/3-x+y,1/3-x,1/3+z'
  '1/3-x+y,2/3-x,2/3+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Sr   0.48294  -0.48294   0.04310   0.01136
Ce   0.00000   0.00000   0.00000   0.01070
P   0.33333   0.66667   0.24480   0.01646
C   0.33070   0.16535   0.23250   0.01520
O1   0.33333   0.66667   0.40700   0.06079
O2   0.25030   0.50060   0.18970   0.02280
O3   0.19000   0.09500   0.20710   0.01773
O4   0.40460   0.09380   0.25210   0.02191