data_global
_chemical_name_mineral 'Aphthitalite'
loop_
_publ_author_name
'Gossner B'
_journal_name_full 'Neues Jahrbuch fur Mineralogie, Geologie und Palaeontologie. Beilage'
_journal_volume 57 
_journal_year 1928
_journal_page_first 89
_journal_page_last 116
_publ_section_title
;
 Ueber die Kristallstruktur von Glaserit und Kaliumsulfat.
 _cod_database_code 1011019
;
_database_code_amcsd 0017926
_chemical_formula_sum 'Na K3 S2 O8'
_cell_length_a 5.65
_cell_length_b 5.65
_cell_length_c 7.29
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 201.537
_exptl_crystal_density_diffrn      2.739
_symmetry_space_group_name_H-M 'P -3 m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-y,-x,z'
  'y,-x+y,-z'
  '-x,-x+y,-z'
  '-x+y,-x,z'
  '-x+y,y,z'
  '-x,-y,-z'
  'y,x,-z'
  '-y,x-y,z'
  'x,x-y,z'
  'x-y,x,-z'
  'x-y,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Na1   0.00000   0.00000   0.00000
K1   0.00000   0.00000   0.50000
K2   0.66667   0.33333   0.87500
S1   0.66667   0.33333   0.27000
O1   0.66667   0.33333   0.46000
O2   0.20000  -0.20000   0.20000