data_global
_chemical_name_mineral 'Guanajuatite'
loop_
_publ_author_name
'Atabaeva E Y'
'Mashkov S A'
'Popova S V'
_journal_name_full 'Kristallografiya'
_journal_volume 18 
_journal_year 1973
_journal_page_first 173
_journal_page_last 174
_publ_section_title
;
 The crystal structure of a new modification of Bi2Se3-II
;
_database_code_amcsd 0014181
_chemical_compound_source 'Guanajuato, Mexico'
_chemical_formula_sum 'Bi2 Se3'
_cell_length_a 11.83
_cell_length_b 4.09
_cell_length_c 11.62
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 562.230
_exptl_crystal_density_diffrn      7.736
_symmetry_space_group_name_H-M 'P n m a'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,z'
  '-x,1/2+y,-z'
  '1/2-x,1/2+y,1/2+z'
  '1/2+x,1/2-y,1/2-z'
  '1/2+x,y,1/2-z'
  '1/2-x,-y,1/2+z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Bi1   0.01200   0.25000   0.32800
Bi2   0.34300   0.25000   0.53400
Se1   0.06700   0.25000   0.87600
Se2   0.87000   0.25000   0.55600
Se3   0.21300   0.25000   0.19300