data_9005264
_chemical_name 'Sanidine'
loop_
_publ_author_name
'Kimata M'
'Shimizu M'
'Saito S'
_journal_name_full "European Journal of Mineralogy"
_journal_volume 8
_journal_year 1996
_journal_page_first 15
_journal_page_last 24
_publ_section_title
;
 High-temperature crystal structure of sanidine
 Part II. The crystal structure of sanidine at 935 C
 Sample: T = 23 C, feldspar
;
_chemical_formula_sum 'K.789 Na.16 Ba.014 Fe.003 (Al Si3) O8'
_cell_length_a 8.531
_cell_length_b 13.007
_cell_length_c 7.179
_cell_angle_alpha 90
_cell_angle_beta 116.00
_cell_angle_gamma 90
_cell_volume 715.981
_symmetry_space_group_name_H-M 'C 1 2/m 1'
loop_
_symmetry_equiv_pos_as_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_Uiso_or_equiv
K   0.28070   0.00000   0.13630   0.78900   0.04606
Na   0.28070   0.00000   0.13630   0.16000   0.04606
Ba   0.28070   0.00000   0.13630   0.01400   0.04606
Fe   0.28070   0.00000   0.13630   0.00300   0.04606
AlT1   0.00850   0.18190   0.22350   0.28000   0.01551
SiT1   0.00850   0.18190   0.22350   0.72000   0.01551
AlT2   0.70230   0.11690   0.34360   0.22000   0.01511
SiT2   0.70230   0.11690   0.34360   0.78000   0.01511
OA1   0.00000   0.14290   0.00000   1.00000   0.02657
OA2   0.62250   0.00000   0.28510   1.00000   0.02669
OB   0.82620   0.14060   0.22620   1.00000   0.02851
OC   0.02770   0.30720   0.25470   1.00000   0.02290
OD   0.18440   0.12520   0.40490   1.00000   0.02461