data_global
_chemical_name_mineral 'Albite'
loop_
_publ_author_name
'Winter J K'
'Ghose S'
'Okamura F P'
_journal_name_full 'American Mineralogist'
_journal_volume 62 
_journal_year 1977
_journal_page_first 921
_journal_page_last 931
_publ_section_title
;
 A high-temperature study of the thermal expansion and the anisotropy of the
 sodium atom in low albite
 T = 750 deg C
 Note: this sample of feldspar is from Tiburon, Marin County, California, USA
;
_database_code_amcsd 0000596
_chemical_formula_sum 'Na Al Si3 O8'
_cell_length_a 8.242
_cell_length_b 12.841
_cell_length_c 7.176
_cell_angle_alpha 93.7
_cell_angle_beta 116.3
_cell_angle_gamma 87.6
_cell_volume 679.366
_exptl_crystal_density_diffrn      2.564
_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
Na   0.27590   0.98820   0.14660
Al1o   0.00940   0.17270   0.21020
Si1m   0.00510   0.81980   0.23720
Si2o   0.69740   0.11240   0.32210
Si2m   0.68860   0.88260   0.36050
Oa1   0.00490   0.13590   0.97030
Oa2   0.60380   0.99930   0.28410
Obo   0.81400   0.11860   0.19670
Obm   0.82330   0.85200   0.25550
Oco   0.02030   0.30620   0.26960
Ocm   0.02750   0.69400   0.24130
Odo   0.20290   0.11190   0.39210
Odm   0.18080   0.86940   0.43010
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 0.05088 0.14471 0.10184 -0.01151 0.02525 -0.05463
Al1o 0.02461 0.02162 0.01924 -0.00384 0.00962 0.00083
Si1m 0.02267 0.01996 0.01757 0.00336 0.00938 0.00209
Si2o 0.02074 0.01663 0.02279 -0.00192 0.00769 0.00083
Si2m 0.02046 0.01663 0.02363 0.00096 0.00866 0.00250
Oa1 0.05475 0.03992 0.02258 -0.00192 0.02068 0.00375
Oa2 0.02489 0.01747 0.03952 -0.00048 0.00818 0.00500
Obo 0.03761 0.04657 0.04726 -0.01295 0.02669 -0.00334
Obm 0.04258 0.05406 0.06420 0.01391 0.03727 0.00459
Oco 0.03401 0.02329 0.04830 -0.00815 0.01491 -0.00375
Ocm 0.03401 0.02246 0.04600 0.00719 0.01202 0.00417
Odo 0.04065 0.04158 0.02593 0.00623 0.00433 0.00542
Odm 0.04480 0.04408 0.02593 -0.00959 0.00096 -0.00334