data_global
_chemical_name_mineral 'Perlialite'
loop_
_publ_author_name
'Artioli G'
'Kvick A'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 2 
_journal_year 1990
_journal_page_first 749
_journal_page_last 759
_publ_section_title
;
 Synchrotron X-ray Rietveld study of perlialite, the natural counterpart of synthetic zeolite-L
 Sample: data collected with synchrotron radiation
;
_database_code_amcsd 0006389
_chemical_formula_sum 'K8 Tl3.78 (Si24 Al12) O94.46 H44.92'
_cell_length_a 18.5432
_cell_length_b 18.5432
_cell_length_c 7.5310
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 2242.604
_exptl_crystal_density_diffrn      2.695
_symmetry_space_group_name_H-M 'P 6/m m m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-x+y,z'
  'x,x-y,-z'
  '-x+y,-x,-z'
  'x-y,x,z'
  '-y,-x,z'
  'y,x,-z'
  'y,-x+y,-z'
  '-y,x-y,z'
  'x-y,-y,z'
  '-x+y,y,-z'
  'x,y,-z'
  '-x,-y,z'
  'x,x-y,z'
  '-x,-x+y,-z'
  'x-y,x,-z'
  '-x+y,-x,z'
  'y,x,z'
  '-y,-x,-z'
  '-y,x-y,-z'
  'y,-x+y,z'
  '-x+y,y,z'
  'x-y,-y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
KA   0.33333   0.66667   0.00000   0.39000   0.07000
KB   0.33333   0.66667   0.50000   0.38000   0.01500
KB1   0.33333   0.66667   0.42700   0.31000   0.01500
KD   0.29700   0.00000   0.00000   0.52000   0.04600
TlD1   0.31500   0.00000   0.00000   0.48000   0.04600
KE   0.50000   0.00000   0.50000   0.70000   0.04100
TlE   0.50000   0.00000   0.50000   0.30000   0.04400
Si1   0.09240   0.35460   0.50000   0.66667   0.03200
Al1   0.09240   0.35460   0.50000   0.33333   0.03200
Si2   0.16720   0.49750   0.21500   0.66667   0.06200
Al2   0.16720   0.49750   0.21500   0.33333   0.06200
O1   0.00000   0.27200   0.50000   1.00000   0.01000
O2   0.15800   0.31600   0.50000   1.00000   0.06000
O3   0.26000   0.52000   0.28800   1.00000   0.07000
O4   0.10380   0.41250   0.32600   1.00000   0.02300
O5   0.40920   0.81840   0.21300   1.00000   0.06000
O6   0.15600   0.48300   0.00000   1.00000   0.01500
WatF   0.11000   0.00000   0.00000   0.40000   0.09000
WatH   0.13400   0.00000   0.37000   0.91000   0.09000
WatI   0.28000   0.14000   0.00000   0.25000   0.03000
WatJ   0.28000   0.14000   0.26000   0.19000   0.10000
WatK   0.00000   0.00000   0.17200   0.70000   0.10000
WatN   0.56000   0.28000   0.00000   0.66000   0.10000