data_global
_chemical_name_mineral 'Indialite'
loop_
_publ_author_name
'Daniels P'
_journal_name_full 'American Mineralogist'
_journal_volume 77 
_journal_year 1992
_journal_page_first 407
_journal_page_last 411
_publ_section_title
;
 Structural effects of the incorporation of large-radius alkalis in high
 cordierite
;
_database_code_amcsd 0001448
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Mg2 (Al4.281 Si4.719) O18 Cs.281'
_cell_length_a 9.801
_cell_length_b 9.801
_cell_length_c 9.381
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 780.406
_exptl_crystal_density_diffrn      2.647
_symmetry_space_group_name_H-M 'P 6/m c c'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-x+y,1/2+z'
  'x,x-y,1/2-z'
  '-x+y,-x,-z'
  'x-y,x,z'
  '-y,-x,1/2+z'
  'y,x,1/2-z'
  'y,-x+y,-z'
  '-y,x-y,z'
  'x-y,-y,1/2+z'
  '-x+y,y,1/2-z'
  'x,y,-z'
  '-x,-y,z'
  'x,x-y,1/2+z'
  '-x,-x+y,1/2-z'
  'x-y,x,-z'
  '-x+y,-x,z'
  'y,x,1/2+z'
  '-y,-x,1/2-z'
  '-y,x-y,-z'
  'y,-x+y,z'
  '-x+y,y,1/2+z'
  'x-y,-y,1/2-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Mg   0.33333   0.66667   0.25000   1.00000
Al1   0.50000   0.50000   0.25000   0.92700
Si1   0.50000   0.50000   0.25000   0.07300
Al2   0.37350   0.26630   0.00000   0.25000
Si2   0.37350   0.26630   0.00000   0.75000
O1   0.48440   0.34890   0.14390   1.00000
O2   0.22990   0.30700   0.00000   1.00000
Cs   0.00000   0.00000   0.25000   0.28100
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
Mg 0.01190 0.01190 0.01790 0.00595 0.00000 0.00000
Al1 0.00960 0.00960 0.01290 0.00480 0.00000 0.00000
Si1 0.00960 0.00960 0.01290 0.00480 0.00000 0.00000
Al2 0.01150 0.00920 0.01430 0.00620 0.00000 0.00000
Si2 0.01150 0.00920 0.01430 0.00620 0.00000 0.00000
O1 0.01630 0.01320 0.01690 0.00900 -0.00280 -0.00010
O2 0.01960 0.02320 0.03120 0.01550 0.00000 0.00000
Cs 0.04060 0.04060 0.05580 0.02030 0.00000 0.00000