data_global
_chemical_name_mineral 'Albite'
loop_
_publ_author_name
'Harlow G E'
'Brown G E'
_journal_name_full 'American Mineralogist'
_journal_volume 65 
_journal_year 1980
_journal_page_first 986
_journal_page_last 995
_publ_section_title
;
 Low albite: An X-Ray and neutron diffraction study
 Sample: X-ray single Na atom
 Note: this sample of feldspar is from Amelia, Virginia
;
_database_code_amcsd 0000797
_chemical_formula_sum 'Al1.005 Si2.995 Na.986 O8'
_cell_length_a 8.142
_cell_length_b 12.785
_cell_length_c 7.159
_cell_angle_alpha 94.19
_cell_angle_beta 116.61
_cell_angle_gamma 87.68
_cell_volume 664.477
_exptl_crystal_density_diffrn      2.618
_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_occupancy
Al1o   0.00878   0.16864   0.20805   0.97000
Si1o   0.00878   0.16864   0.20805   0.03000
Si1m   0.00382   0.82064   0.23734   0.96500
Al1m   0.00382   0.82064   0.23734   0.03500
Si2o   0.69210   0.11040   0.31507   1.00000
Si2m   0.68175   0.88189   0.36071   1.00000
Na1   0.26839   0.98867   0.14628   0.98600
Oa1   0.00481   0.12120   0.96610   1.00000
Oa2   0.59166   0.99766   0.27967   1.00000
Obo   0.81285   0.11039   0.19124   1.00000
Obm   0.82061   0.85121   0.25942   1.00000
Oco   0.01348   0.30276   0.27023   1.00000
Ocm   0.02402   0.69390   0.22938   1.00000
Odo   0.20765   0.10922   0.38898   1.00000
Odm   0.18316   0.86825   0.43555   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
Al1o 0.00894 0.00577 0.00544 -0.00094 0.00302 0.00008
Si1o 0.00894 0.00577 0.00544 -0.00094 0.00302 0.00008
Si1m 0.00744 0.00461 0.00453 0.00099 0.00269 0.00054
Al1m 0.00744 0.00461 0.00453 0.00099 0.00269 0.00054
Si2o 0.00660 0.00379 0.00633 -0.00009 0.00212 0.00000
Si2m 0.00671 0.00404 0.00658 0.00052 0.00273 0.00062
Na1 0.01664 0.04316 0.03035 -0.00376 0.00839 -0.02129
Oa1 0.01922 0.00997 0.00689 0.00127 0.00697 0.00095
Oa2 0.00902 0.00568 0.01210 -0.00019 0.00299 0.00116
Obo 0.01391 0.01202 0.01629 -0.00315 0.00957 -0.00128
Obm 0.01592 0.01433 0.02173 0.00456 0.01251 0.00116
Oco 0.01404 0.00675 0.01367 -0.00118 0.00511 -0.00111
Ocm 0.01302 0.00675 0.01389 0.00226 0.00302 0.00058
Odo 0.01514 0.01194 0.00833 0.00310 0.00130 0.00194
Odm 0.01702 0.01252 0.00901 -0.00188 -0.00005 -0.00107