data_global
_chemical_name_mineral 'Natrolite'
loop_
_publ_author_name
'Taylor W'
'Meek C'
'Jackson W'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 84 
_journal_year 1933
_journal_page_first 373
_journal_page_last 398
_publ_section_title
;
 The structures of fibrous zeolites
 _cod_database_code 1011255
;
_database_code_amcsd 0018117
_chemical_formula_sum 'O12 Si3 Al2 Na2'
_cell_length_a 18.29999
_cell_length_b 18.59999
_cell_length_c 6.57
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 2236.294
_exptl_crystal_density_diffrn      2.235
_symmetry_space_group_name_H-M 'F d d 2'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2+y,1/2+z'
  '1/2+x,y,1/2+z'
  '1/2+x,1/2+y,z'
  '1/4+x,1/4-y,1/4+z'
  '1/4+x,3/4-y,3/4+z'
  '3/4+x,1/4-y,3/4+z'
  '3/4+x,3/4-y,1/4+z'
  '1/4-x,1/4+y,1/4+z'
  '1/4-x,3/4+y,3/4+z'
  '3/4-x,1/4+y,3/4+z'
  '3/4-x,3/4+y,1/4+z'
  '-x,1/2-y,1/2+z'
  '-x,-y,+z'
  '1/2-x,1/2-y,+z'
  '1/2-x,-y,1/2+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
O1   0.06900   0.18100   0.12500
O2   0.06900   0.18100   0.62500
O3   0.01400   0.06700   0.87500
O4   0.18300   0.23600   0.37500
O5   0.09700   0.04200   0.50000
O6   0.20800   0.15300   0.75000
Si1   0.00000   0.00000   0.00000
Si2   0.15300   0.20800   0.62500
Al1   0.03600   0.08900   0.62500
Na1   0.22200   0.02800   0.62500