data_9009662
_chemical_name 'Sanidine'
loop_
_publ_author_name
'Gualtieri A F'
_journal_name_full "Journal of Applied Crystallography"
_journal_volume 33
_journal_year 2000
_journal_page_first 267
_journal_page_last 278
_publ_section_title
;
 Accuracy of XRPD QPA using the combined Rietveld-RIR method
 Locality: Latera, Viterbo, Italy
;
_chemical_formula_sum 'K (Al Si3) O8'
_cell_length_a 8.53573
_cell_length_b 13.03129
_cell_length_c 7.17536
_cell_angle_alpha 90
_cell_angle_beta 115.9855
_cell_angle_gamma 90
_cell_volume 717.440
_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   0.28400   0.00000   0.13710   1.00000   0.02700
Al1   0.00930   0.18440   0.22380   0.25000   0.01000
Si1   0.00930   0.18440   0.22380   0.75000   0.01000
Al2   0.70760   0.11770   0.34430   0.25000   0.01100
Si2   0.70760   0.11770   0.34430   0.75000   0.01100
O1   0.00000   0.14610   0.00000   1.00000   0.02300
O2   0.63400   0.00000   0.28550   1.00000   0.01900
O3   0.82770   0.14540   0.22780   1.00000   0.02000
O4   0.03380   0.30980   0.25770   1.00000   0.02500
O5   0.18120   0.12640   0.40520   1.00000   0.02400