data_global
_amcsd_formula_title 'Ge3 K2 O9 Sn'
loop_
_publ_author_name
'Choisnet J'
'Deschanvres A'
'Raveau B'
_journal_name_full 'Journal of Solid State Chemistry'
_journal_volume 7 
_journal_year 1973
_journal_page_first 408
_journal_page_last 417
_publ_section_title
;
 Evolution structural de nouveaux germanates et silicates de type
 Wadeite et de structure apparentee
 _cod_database_code 1001120
;
_database_code_amcsd 0013326
_chemical_formula_sum 'K2 Sn Ge3 O9'
_cell_length_a 12.082
_cell_length_b 12.082
_cell_length_c 10.181
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 1287.060
_exptl_crystal_density_diffrn      4.325
_symmetry_space_group_name_H-M 'P -3 c 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-y,-x,1/2+z'
  'y,-x+y,-z'
  '-x,-x+y,1/2-z'
  '-x+y,-x,z'
  '-x+y,y,1/2+z'
  '-x,-y,-z'
  'y,x,1/2-z'
  '-y,x-y,z'
  'x,x-y,1/2+z'
  'x-y,x,-z'
  'x-y,-y,1/2-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
K1  -0.00900   0.32180   0.42690
Sn1   0.00000   0.00000   0.00000
Sn2   0.33333   0.66667   0.46550
Ge1   0.00000   0.17460   0.25000
Ge2   0.65770   0.52130   0.79470
O1   0.00000   0.46580   0.25000
O2   0.79100   0.68120   0.82560
O3   0.79380   0.89770   0.88880
O4   0.72800   0.47050   0.67320
O5   0.65120   0.43600   0.92760