data_global
_chemical_name_mineral 'Mopungite'
loop_
_publ_author_name
'Schrewelius N'
_journal_name_full 'Zeitschrift fur Anorganische und Allgemeine Chemie'
_journal_volume 238 
_journal_year 1938
_journal_page_first 241
_journal_page_last 254
_publ_section_title
;
 Rontgenuntersuchung der verbindungen NaSb(OH)6, NaSbF6, NaSbO3 und gleichartiger stoffe
;
_database_code_amcsd 0015748
_chemical_formula_sum 'Na Sb (O6 H6)'
_cell_length_a 8.01
_cell_length_b 8.01
_cell_length_c 7.88
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 505.582
_exptl_crystal_density_diffrn      3.242
_symmetry_space_group_name_H-M 'P 42/n'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'y,-x,-z'
  '1/2-y,1/2+x,1/2+z'
  '1/2+x,1/2+y,1/2-z'
  '-x,-y,z'
  '-y,x,-z'
  '1/2+y,1/2-x,1/2+z'
  '1/2-x,1/2-y,1/2-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Na   0.25000   0.25000   0.75000
Sb   0.25000   0.25000   0.25000
O-H1   0.28000   0.02500   0.34000
O-H2   0.02500   0.28000   0.34000
O-H3   0.17500   0.17500   0.02500