data_global
_chemical_name_mineral 'Londonite'
loop_
_publ_author_name
'Taxer K J'
'Buerger M J'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 125 
_journal_year 1967
_journal_page_first 423
_journal_page_last 436
_publ_section_title
;
 The crystal struture of rhodizite
 Note: name of mineral altered according to IMA decision in 1999
 to name the Cs dominant phase: londonite
;
_database_code_amcsd 0010650
_chemical_compound_source 'Manjaka, Madagascar'
_chemical_formula_sum 'Cs B12 Be4 Al4 O28'
_cell_length_a 7.319
_cell_length_b 7.319
_cell_length_c 7.319
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 392.062
_exptl_crystal_density_diffrn      3.620
_symmetry_space_group_name_H-M 'P -4 3 m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-z,x,-y'
  '-y,z,-x'
  '-x,y,-z'
  'x,-z,-y'
  'z,-y,-x'
  'y,-x,-z'
  'x,z,y'
  'z,y,x'
  'y,x,z'
  '-z,-x,y'
  '-y,-z,x'
  '-x,-y,z'
  'z,-x,-y'
  'y,-z,-x'
  'x,-y,-z'
  '-x,z,-y'
  '-z,y,-x'
  '-y,x,-z'
  '-x,-z,y'
  '-z,-y,x'
  '-y,-x,z'
  'z,x,y'
  'y,z,x'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Cs   0.00000   0.00000   0.00000   0.01292
B   0.24690   0.50000   0.00000   0.01013
Be   0.74900   0.74900   0.74900   0.01773
Al   0.36030   0.36030   0.36030   0.00697
O1   0.62030   0.62030   0.62030   0.00646
O2   0.36430   0.36430   0.10010   0.00405
O3   0.13420   0.13420   0.59960   0.00950
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
Cs 0.01303 0.01303 0.01303 0.00000 0.00000 0.00000
Be 0.01845 0.01845 0.01845 0.00081 0.00081 0.00081
Al 0.00706 0.00706 0.00706 0.00054 0.00054 0.00054
O1 0.00407 0.00407 0.00407 0.00461 0.00461 0.00461
O2 0.00353 0.00353 0.00543 0.00299 -0.00081 0.00299
O3 0.00787 0.00787 0.01303 0.00651 0.00027 0.00651