data_global
_chemical_name_mineral 'Stillwellite-(Ce)'
loop_
_publ_author_name
'Voronkov A A'
'Pyatenko Y A'
_journal_name_full 'Soviet Physics Crystallography'
_journal_volume 12 
_journal_year 1967
_journal_page_first 214
_journal_page_last 220
_publ_section_title
;
 X-ray diffraction study of the atomic structure of stillwellite CeBO[SiO4]
;
_database_code_amcsd 0018733
_chemical_compound_source 'Soviet'
_chemical_formula_sum 'Ce B Si O5'
_cell_length_a 6.85
_cell_length_b 6.85
_cell_length_c 6.70
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 272.262
_exptl_crystal_density_diffrn      4.739
_symmetry_space_group_name_H-M 'P 31'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-y,x-y,1/3+z'
  '-x+y,-x,2/3+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Ce   0.58700   0.00000   0.00000
B   0.11300   0.00000   0.97300
Si   0.58500   0.00000   0.50000
O1   0.33900   0.19400   0.02300
O2   0.19500   0.33900   0.31000
O3   0.61300   0.46400   0.32000
O4   0.46400   0.61400   0.01400
O5   0.05100   0.05100   0.78100