data_global
_chemical_name_mineral 'Meionite'
loop_
_publ_author_name
'Lin S B'
'Burley B J'
_journal_name_full 'Tschermaks Mineralogische und Petrographische Mitteilungen'
_journal_volume 21 
_journal_year 1974
_journal_page_first 196
_journal_page_last 215
_publ_section_title
;
 The crystal structure of an intermediate scapolite - wernerite
;
_database_code_amcsd 0015648
_chemical_compound_source 'Tsarasaotra, Madagascar'
_chemical_formula_sum 'Ca2.088 Na1.656 K.232 Cl.365 C.435 S.185 Si7.5 Al4.344 O25.312'
_cell_length_a 12.1164
_cell_length_b 12.1164
_cell_length_c 7.581
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1112.945
_exptl_crystal_density_diffrn      2.649
_symmetry_space_group_name_H-M 'P 42/n'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'y,-x,-z'
  '1/2-y,1/2+x,1/2+z'
  '1/2+x,1/2+y,1/2-z'
  '-x,-y,z'
  '-y,x,-z'
  '1/2+y,1/2-x,1/2+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_U_iso_or_equiv
Ca   0.36030   0.28410   0.51260   0.52200   0.02394
Na   0.36030   0.28410   0.51260   0.41400   0.02394
K   0.36030   0.28410   0.51260   0.05800   0.02394
Cl   0.50000   0.50000   0.50000   0.36500   0.02381
C   0.50000   0.50000   0.50000   0.43500   0.02381
S   0.50000   0.50000   0.50000   0.18500   0.02381
Si1   0.33900   0.40920   0.99780   0.62500   0.00646
Al1   0.33900   0.40920   0.99780   0.36200   0.00646
Si2   0.65930   0.91550   0.79670   0.62500   0.00773
Al2   0.65930   0.91550   0.79670   0.36200   0.00773
Si3   0.41250   0.83630   0.71030   0.62500   0.00722
Al3   0.41250   0.83630   0.71030   0.36200   0.00722
O1   0.45760   0.35030   0.00190   1.00000   0.01305
O2   0.69020   0.87570   0.00880   1.00000   0.01431
O3   0.34980   0.94200   0.79470   1.00000   0.01748
O4   0.54590   0.84720   0.71600   1.00000   0.01583
O5   0.26770   0.36670   0.83070   1.00000   0.01836
O6   0.37030   0.72870   0.82560   1.00000   0.01621
O7   0.39780   0.47930   0.45980   0.16400   0.05864
O8   0.40070   0.48190   0.58710   0.16400   0.05053