data_9002000
_chemical_name 'Analcime'
loop_
_publ_author_name
'Cruciani G'
'Gualtieri A'
_journal_name_full "American Mineralogist"
_journal_volume 84
_journal_year 1999
_journal_page_first 112
_journal_page_last 119
_publ_section_title
;
 Dehydration dynamics of analcime by in situ synchrotron powder diffraction
 Sample at T = 298 K
;
_chemical_formula_sum '(Si4.1 Al1.9) Na1.95 O14 H4'
_cell_length_a 13.7295
_cell_length_b 13.7295
_cell_length_c 13.7036
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 2583.117
_symmetry_space_group_name_H-M 'I 41/a c d'
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  '1/4-y,3/4-x,3/4+z'
  '3/4-y,1/4-x,1/4+z'
  '1/4+y,3/4+x,3/4-z'
  '3/4+y,1/4+x,1/4-z'
  '1/4+y,3/4-x,1/4-z'
  '3/4+y,1/4-x,3/4-z'
  '1/4-y,3/4+x,1/4+z'
  '3/4-y,1/4+x,3/4+z'
  '1/2+x,-y,z'
  '+x,1/2-y,1/2+z'
  '1/2-x,y,-z'
  '-x,1/2+y,1/2-z'
  '1/2+x,y,1/2-z'
  '+x,1/2+y,-z'
  '1/2-x,-y,1/2+z'
  '-x,1/2-y,+z'
  '1/4+y,1/4+x,1/4+z'
  '3/4+y,3/4+x,3/4+z'
  '1/4-y,1/4-x,1/4-z'
  '3/4-y,3/4-x,3/4-z'
  '1/4-y,1/4+x,3/4-z'
  '3/4-y,3/4+x,1/4-z'
  '1/4+y,1/4-x,3/4+z'
  '3/4+y,3/4-x,1/4+z'
  '-x,y,1/2+z'
  '1/2-x,1/2+y,+z'
  'x,-y,1/2-z'
  '1/2+x,1/2-y,-z'
  '-x,-y,-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
_atom_site_occupancy
_atom_site_Uiso_or_equiv
Si1   0.12430   0.16090   0.41410   0.57500   0.03800
Al1   0.12430   0.16090   0.41410   0.42500   0.03800
Si2   0.16190   0.41190   0.12500   0.90000   0.03900
Al2   0.16190   0.41190   0.12500   0.10000   0.03900
Na1   0.13430   0.00000   0.25000   0.86000   0.08300
Na2   0.00000   0.25000   0.12500   0.23000   0.08300
O1   0.09900   0.37340   0.21880   1.00000   0.02400
O2   0.22190   0.11200   0.36270   1.00000   0.05500
O3   0.35820   0.21790   0.10520   1.00000   0.03800
Wat   0.11650   0.13350   0.12500   1.00000   0.06900