data_global
_chemical_name_mineral 'Sanidine'
loop_
_publ_author_name
'Marsii 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 0020569
_chemical_compound_source 'Mongolia'
_chemical_formula_sum '(K.41 Na.56 Ca.03) (Al1.002 Si2.998) O8'
_cell_length_a 8.360
_cell_length_b 12.997
_cell_length_c 7.162
_cell_angle_alpha 90
_cell_angle_beta 116.17
_cell_angle_gamma 90
_cell_volume 698.414
_exptl_crystal_density_diffrn      2.561
_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   0.27690   0.00000   0.13580   0.41000   0.04597
Na1   0.27690   0.00000   0.13580   0.56000   0.04597
Ca1   0.27690   0.00000   0.13580   0.03000   0.04597
Al1   0.00800   0.18020   0.22350   0.28600   0.01722
Si1   0.00800   0.18020   0.22350   0.71400   0.01722
Al2   0.69810   0.11660   0.34130   0.21500   0.02102
Si2   0.69810   0.11660   0.34130   0.78500   0.02102
O1   0.00000   0.14110   0.00000   1.00000   0.02394
O2   0.61130   0.00000   0.28430   1.00000   0.02761
O3   0.82410   0.13880   0.22610   1.00000   0.02888
O4   0.02710   0.30580   0.26300   1.00000   0.02318
O5   0.18650   0.12470   0.40540   1.00000   0.02457