data_global
_amcsd_formula_title 'Mg5 Na O30 Rb Si12'
loop_
_publ_author_name
'Nguyen N'
'Choisnet J'
'Raveau B'
_journal_name_full 'Journal of Solid State Chemistry'
_journal_volume 34 
_journal_year 1980
_journal_page_first 1
_journal_page_last 9
_publ_section_title
;
 Silicates synthetiques a structure milarite
 _cod_database_code 1001140
;
_database_code_amcsd 0013399
_chemical_formula_sum 'Rb Na Mg5 Si12 O30'
_cell_length_a 10.135
_cell_length_b 10.135
_cell_length_c 14.376
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 1278.840
_exptl_crystal_density_diffrn      2.719
_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
Rb1   0.00000   0.00000   0.25000   1.00000
Na1   0.33333   0.66667   0.00000   0.50000
Mg1   0.33333   0.66667   0.25000   1.00000
Mg2   0.50000   0.00000   0.25000   1.00000
Si1   0.76100   0.11600   0.10700   1.00000
O1   0.73000   0.13900   0.00000   1.00000
O2   0.94200   0.22300   0.13600   1.00000
O3   0.65800   0.15500   0.16300   1.00000