data_global
_chemical_name_mineral 'Fluocerite-(Sm)'
loop_
_publ_author_name
'Oftedal I'
_journal_name_full 'Zeitschrift fur Physikalische Chemie'
_journal_volume 5 
_journal_year 1929
_journal_page_first 272
_journal_page_last 292
_publ_section_title
;
 Ueber die Kristallstruktur von Tysonit und einigen kuenstlich
 dargestellten Lanthanidenfluoriden
 _cod_database_code 1010986
;
_database_code_amcsd 0017902
_chemical_formula_sum 'Sm F3'
_cell_length_a 6.99
_cell_length_b 6.99
_cell_length_c 7.16
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 302.969
_exptl_crystal_density_diffrn      6.819
_symmetry_space_group_name_H-M 'P 63 2 2'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,x-y,1/2-z'
  'x-y,x,1/2+z'
  'y,x,-z'
  '-y,x-y,z'
  '-x+y,y,1/2-z'
  '-x,-y,1/2+z'
  '-x,-x+y,-z'
  '-x+y,-x,z'
  '-y,-x,1/2-z'
  'y,-x+y,1/2+z'
  'x-y,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Sm1   0.33333   0.33333   0.00000
F1   0.38000   0.04600   0.16000
F2   0.33333   0.66667   0.08330
F3   0.00000   0.00000   0.25000