data_global
_chemical_name_mineral 'Sanidine'
loop_
_publ_author_name
'Angel R J'
'Ross N L'
'Zhao J'
'Sochalski-Kolbus L'
'Kruger H'
'Schmidt B C'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 25 
_journal_year 2013
_journal_page_first 597
_journal_page_last 614
_publ_section_title
;
 Structural controls on the anisotropy of tetrahedral frameworks:
 the example of monoclinic feldspars
 Note: Sample San100
;
_database_code_amcsd 0020555
_chemical_compound_source 'Synthetic'
_chemical_formula_sum '(K.98 Ba.02) (Si3 Al) O8'
_cell_length_a 8.6032
_cell_length_b 13.0237
_cell_length_c 7.1885
_cell_angle_alpha 90
_cell_angle_beta 115.9940
_cell_angle_gamma 90
_cell_volume 723.961
_exptl_crystal_density_diffrn      2.572
_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   0.28605   0.00000   0.13764   0.98000   0.02706
Ba   0.28605   0.00000   0.13764   0.02000   0.02706
SiT1   0.00973   0.18543   0.22374   0.69000   0.01068
AlT1A   0.00973   0.18543   0.22374   0.31000   0.01068
SiT2   0.71030   0.11806   0.34448   0.81000   0.01025
AlT2A   0.71030   0.11806   0.34448   0.19000   0.01025
OA1   0.00000   0.14684   0.00000   1.00000   0.01980
OA2   0.63930   0.00000   0.28470   1.00000   0.02040
OB   0.82872   0.14756   0.22692   1.00000   0.02400
OC   0.03537   0.31085   0.25818   1.00000   0.01890
OD   0.17968   0.12660   0.40447   1.00000   0.01950
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 0.01710 0.03370 0.02740 0.00000 0.00702 0.00000
Ba 0.01710 0.03370 0.02740 0.00000 0.00702 0.00000
SiT1 0.01119 0.01180 0.00906 -0.00210 0.00442 -0.00093
AlT1A 0.01119 0.01180 0.00906 -0.00210 0.00442 -0.00093
SiT2 0.01014 0.00933 0.01045 -0.00049 0.00377 -0.00005
AlT2A 0.01014 0.00933 0.01045 -0.00049 0.00377 -0.00005
OA1 0.02510 0.01910 0.01650 0.00000 0.01050 0.00000
OA2 0.01760 0.01370 0.02370 0.00000 0.00340 0.00000
OB 0.02020 0.03130 0.02400 -0.00460 0.01300 0.00040
OC 0.01650 0.01700 0.02130 -0.00150 0.00650 -0.00200
OD 0.02020 0.02040 0.01370 0.00210 0.00360 0.00170