data_global
_chemical_name_mineral 'Albite'
loop_
_publ_author_name
'Downs R T'
'Hazen R M'
'Finger L W'
_journal_name_full 'American Mineralogist'
_journal_volume 79 
_journal_year 1994
_journal_page_first 1042
_journal_page_last 1052
_publ_section_title
;
 The high-pressure crystal chemistry of low albite and the origin of the
 pressure dependency of Al-Si ordering
 P = 2.68 GPa
 Note: sample is from Crete
;
_database_code_amcsd 0001686
_chemical_formula_sum 'Na Al Si3 O8'
_cell_length_a 7.9567
_cell_length_b 12.6784
_cell_length_c 7.0897
_cell_angle_alpha 94.217
_cell_angle_beta 116.992
_cell_angle_gamma 88.025
_cell_volume 635.564
_exptl_crystal_density_diffrn      2.740
_symmetry_space_group_name_H-M 'C -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'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Na   0.25866   0.99301   0.13916   0.04813
Al1o   0.00580   0.16641   0.20652   0.00760
Si1m  -0.00025   0.82060   0.23609   0.00684
Si2o   0.68735   0.10846   0.31137   0.00621
Si2m   0.67164   0.88023   0.35985   0.00608
O(A1)   0.00729   0.12923   0.96744   0.01140
O(A2)   0.58103   0.99641   0.28241   0.00861
O(B)o   0.80788   0.10196   0.18396   0.01254
O(B)m   0.81160   0.84925   0.25503   0.01608
O(C)o  -0.00074   0.30021   0.27219   0.01115
O(C)m   0.01927   0.69352   0.22398   0.00988
O(D)o   0.21142   0.11030   0.38630   0.01672
O(D)m   0.17819   0.86810   0.42915   0.02014
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
Na 0.02641 0.03880 0.08657 -0.00059 0.03614 -0.01777