data_global
_chemical_name_mineral 'Millerite'
loop_
_publ_author_name
'Grice J D'
'Ferguson R B'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 12 
_journal_year 1974
_journal_page_first 248
_journal_page_last 252
_publ_section_title
;
 Crystal structure refinement of millerite (B-NiS)
;
_database_code_amcsd 0005097
_chemical_formula_sum 'Ni S'
_cell_length_a 9.6071
_cell_length_b 9.6071
_cell_length_c 3.1434
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 251.255
_exptl_crystal_density_diffrn      5.398
_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
Ni   0.91225  -0.91225   0.47546   0.05600
S   0.11224  -0.11224   0.00000   0.06600