data_global
_chemical_name_mineral 'Sanidine'
loop_
_publ_author_name
'Marcille I M'
'Organova N I'
'Rozhdestvenskaya I V'
_journal_name_full 'Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva'
_journal_volume 2 
_journal_year 1993
_journal_page_first 85
_journal_page_last 89
_publ_section_title
;
 Verification of the crystalline structure for sanidines
;
_database_code_amcsd 0020568
_chemical_compound_source 'Khibiny Massif, Kola Peninsula, Russia'
_chemical_formula_sum '(K.826 Na.086 Ba.048 Sr.04) (Al1.08 Si2.92) O8'
_cell_length_a 8.540
_cell_length_b 13.036
_cell_length_c 7.189
_cell_angle_alpha 90
_cell_angle_beta 115.96
_cell_angle_gamma 90
_cell_volume 719.579
_exptl_crystal_density_diffrn      2.617
_symmetry_space_group_name_H-M 'C 1 2/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,z'
  '1/2+x,1/2-y,z'
  '-x,y,-z'
  '1/2-x,1/2+y,-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,-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
K1   0.28340   0.00000   0.13600   0.82600   0.02609
Na1   0.28340   0.00000   0.13600   0.08600   0.02609
Ba1   0.28340   0.00000   0.13600   0.04800   0.02609
Sr1   0.28340   0.00000   0.13600   0.04000   0.02609
Al1   0.00920   0.18400   0.22370   0.32000   0.00950
Si1   0.00920   0.18400   0.22370   0.68000   0.00950
Al2   0.70700   0.11770   0.34430   0.22000   0.00912
Si2   0.70700   0.11770   0.34430   0.78000   0.00912
O1   0.00000   0.14500   0.00000   1.00000   0.01938
O2   0.63190   0.00000   0.28510   1.00000   0.01874
O3   0.82790   0.14440   0.22730   1.00000   0.02356
O4   0.03240   0.30960   0.25640   1.00000   0.01824
O5   0.18170   0.12650   0.40470   1.00000   0.01824