data_global
_chemical_name_mineral 'Sanidine'
loop_
_publ_author_name
'Weitz G'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 136 
_journal_year 1972
_journal_page_first 418
_journal_page_last 426
_publ_section_title
;
 Die struktur des saninins bei verschiedenen ordnungsgraden
 Note: before heating
;
_database_code_amcsd 0010740
_chemical_compound_source 'Volkesfeld, Eifel'
_chemical_formula_sum 'K (Al Si3) O8'
_cell_length_a 8.549
_cell_length_b 13.028
_cell_length_c 7.188
_cell_angle_alpha 90
_cell_angle_beta 116.02
_cell_angle_gamma 90
_cell_volume 719.428
_exptl_crystal_density_diffrn      2.570
_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
K   0.28380   0.00000   0.13660   1.00000
Al1   0.00940   0.18430   0.22390   0.27000
Si1   0.00940   0.18430   0.22390   0.73000
Al2   0.70730   0.11780   0.34430   0.23000
Si2   0.70730   0.11780   0.34430   0.77000
OA1   0.00000   0.14520   0.00000   1.00000
OA2   0.63280   0.00000   0.28380   1.00000
OB   0.82810   0.14440   0.22720   1.00000
OC   0.03370   0.30960   0.25840   1.00000
OD   0.18140   0.12620   0.40520   1.00000
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
K 0.01435 0.03009 0.02494 0.00000 0.00578 0.00000
Al1 0.00867 0.00860 0.00655 0.00101 0.00327 -0.00171
Si1 0.00867 0.00860 0.00655 0.00101 0.00327 -0.00171
Al2 0.00777 0.00516 0.00824 -0.00051 0.00302 -0.00043
Si2 0.00777 0.00516 0.00824 -0.00051 0.00302 -0.00043
OA1 0.03319 0.03009 0.02346 0.00000 0.01584 0.00000
OA2 0.02721 0.01892 0.02832 0.00000 0.00578 0.00000
OB 0.02721 0.03955 0.03086 0.00051 0.01735 -0.00384
OC 0.02272 0.02408 0.02917 -0.00203 0.01106 -0.00256
OD 0.02661 0.02752 0.01712 0.00101 0.00478 0.00171