data_global
_chemical_name_mineral 'Nickeline'
loop_
_publ_author_name
'Alsen N'
_journal_name_full 'Geologiska Foreningens i Stockholm Forhandlingar'
_journal_volume 47 
_journal_year 1925
_journal_page_first 19
_journal_page_last 73
_publ_section_title
;
 Roentgenographische Untersuchungen der Kristallstrukturen von
 Magnetkies, Breithauptit, Pentlandit, Millerit und verwandten
 Verbindungen
 _cod_database_code 1011036
;
_database_code_amcsd 0017940
_chemical_formula_sum 'Ni As'
_cell_length_a 3.61
_cell_length_b 3.61
_cell_length_c 5.028
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 56.747
_exptl_crystal_density_diffrn      7.820
_symmetry_space_group_name_H-M 'P 63/m m c'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-x+y,1/2+z'
  'x,x-y,1/2-z'
  '-x+y,-x,1/2-z'
  'x-y,x,1/2+z'
  '-y,-x,z'
  'y,x,-z'
  'y,-x+y,-z'
  '-y,x-y,z'
  'x-y,-y,1/2+z'
  '-x+y,y,1/2-z'
  'x,y,1/2-z'
  '-x,-y,1/2+z'
  'x,x-y,z'
  '-x,-x+y,-z'
  'x-y,x,-z'
  '-x+y,-x,z'
  'y,x,1/2+z'
  '-y,-x,1/2-z'
  '-y,x-y,1/2-z'
  'y,-x+y,1/2+z'
  '-x+y,y,z'
  'x-y,-y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Ni1   0.00000   0.00000   0.00000
As1   0.33333   0.66667   0.25000