data_global
_chemical_name_mineral 'Sanidine'
loop_
_publ_author_name
'Ohashi Y'
'Finger LW'
_journal_name_full 'Carnegie Institution of Washington: Yearbook'
_journal_volume 73 
_journal_year 1974
_journal_page_first 539
_journal_page_last 544
_publ_section_title
;
 Refinement of the crystal structure of sanidine at 25 and 400C
 Note: T = 25 C
;
_database_code_amcsd 0020564
_chemical_compound_source 'Laacher See, Eifel District, Germany'
_chemical_formula_sum '(K.86 Na.14) (Si3 Al) O8'
_cell_length_a 8.543
_cell_length_b 13.021
_cell_length_c 7.183
_cell_angle_alpha 90
_cell_angle_beta 115.980
_cell_angle_gamma 90
_cell_volume 718.281
_exptl_crystal_density_diffrn      2.553
_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
K   0.28400   0.00000   0.13710   0.86000   0.02723
Na   0.28400   0.00000   0.13710   0.14000   0.02723
SiT1   0.00930   0.18440   0.22380   0.68000   0.01051
AlT1   0.00930   0.18440   0.22380   0.32000   0.01051
SiT2   0.70760   0.11770   0.34430   0.82000   0.01051
AlT2   0.70760   0.11770   0.34430   0.18000   0.01051
Oa1   0.00000   0.14610   0.00000   1.00000   0.02014
Oa2   0.63400   0.00000   0.28550   1.00000   0.02014
Ob   0.82770   0.14540   0.22780   1.00000   0.02305
Oc   0.03880   0.30980   0.25770   1.00000   0.01824
Od   0.18120   0.12640   0.40520   1.00000   0.01887