data_global
_chemical_name_mineral 'Glauberite'
loop_
_publ_author_name
'Araki T'
'Zoltai T'
_journal_name_full 'American Mineralogist'
_journal_volume 52
_journal_year 1967
_journal_page_first 1272
_journal_page_last 1277
_publ_section_title
;
 Refinement of the crystal structure of a glauberite
;
_database_code_amcsd 158
_chemical_compound_source 'Imperial County, California, USA'
_chemical_formula_sum 'Ca Na2 S2 O8'
_cell_length_a 10.129
_cell_length_b 8.306
_cell_length_c 8.533
_cell_angle_alpha 90.0
_cell_angle_beta 112.19
_cell_angle_gamma 90.0
_cell_volume 664.724
_exptl_crystal_density_diffrn  2.78
_symmetry_space_group_name_H-M 'C 1 2/c 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '-x,y,1/2-z'
  '1/2-x,1/2+y,1/2-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
Ca   0.5  0.4356  0.25
Na   0.1371  0.4445  0.4394
S   0.1856  0.2143  0.1888
O1   0.1252  0.0894  0.0583
O2   0.1616  0.1633  0.3399
O3   0.34  0.2294  0.2303
O4   0.1134  0.3697  0.1325
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Ca   0.00356  0.00185  0.00572  0.0  -0.00038  0.0
Na   0.01479  0.02359  0.0155  0.00122  0.0021  -0.0118
S   0.00388  0.00248  0.00348  -0.00205  0.00173  -0.00047
O1   0.01858  0.00692  0.01192  -0.00485  0.0018  -0.00216
O2   0.02036  0.01171  0.00718  -0.00217  0.00969  0.00249
O3   0.01796  0.01478  0.02555  -0.00699  0.01393  0.00263
O4   0.01408  0.00419  0.01682  0.00529  0.00503  0.00625