data_9009244
_chemical_name 'Wilkmanite'
loop_
_publ_author_name
'Hiller J E'
'Wegener W'
_journal_name_full "Neues Jahrbuch fur Mineralogie, Abhandlungen"
_journal_volume 94
_journal_year 1960
_journal_page_first 1147
_journal_page_last 1159
_publ_section_title
;
 Untersuchungen im system nickel-selen
;
_chemical_formula_sum 'Ni3 Se4'
_cell_length_a 12.15
_cell_length_b 3.633
_cell_length_c 10.45
_cell_angle_alpha 90
_cell_angle_beta 149.37
_cell_angle_gamma 90
_cell_volume 235.015
_symmetry_space_group_name_H-M 'C 1 2/m 1'
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,z'
  '1/2+x,1/2-y,z'
  '-x,y,-z'
  '1/2-x,1/2+y,-z'
  '-x,-y,-z'
  '1/2-x,1/2-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
Ni2   0.00000   0.00000   0.25000
Se1   0.33333   0.00000   0.45800
Se2   0.33333   0.00000   0.95800