data_global
_chemical_name_mineral 'Iodargyrite'
loop_
_publ_author_name
'Aminoff G'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 57 
_journal_year 1922
_journal_page_first 180
_journal_page_last 185
_publ_section_title
;
 Ueber die Kristallstruktur von Ag I.
 _cod_database_code 1011050
;
_database_code_amcsd 0017951
_chemical_formula_sum 'Ag I'
_cell_length_a 4.58
_cell_length_b 4.58
_cell_length_c 7.51
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 136.427
_exptl_crystal_density_diffrn      5.715
_symmetry_space_group_name_H-M 'P 63 m c'
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
Ag1   0.33333   0.66667   0.00000
I1   0.33333   0.66667   0.37500