#------------------------------------------------------------------------------
#$Date: 2009-11-18 16:56:34 +0200 (Wed, 18 Nov 2009) $
#$Revision: 858 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/9000745.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_9000745
loop_
_publ_author_name
'Wenk H R'
'Joswig W'
'Tagai T'
'Korekawa M'
'Smith B K'
_publ_section_title
;
 The average structure of An 62-66 labradorite
 Surtsey neutron
 feldspar
;
_journal_name_full               'American Mineralogist'
_journal_page_first              81
_journal_page_last               95
_journal_volume                  65
_journal_year                    1980
_chemical_formula_sum            'Al0.81 Ca0.325 Na0.16 O4 Si1.19'
_[local]_cod_chemical_formula_sum_orig 'Ca.325 Na.16 (Si1.19 Al.81) O4'
_chemical_name_mineral           Labradorite
_symmetry_space_group_name_H-M   'C -1'
_cell_angle_alpha                93.462
_cell_angle_beta                 116.054
_cell_angle_gamma                90.475
_cell_length_a                   8.1736
_cell_length_b                   12.8736
_cell_length_c                   7.1022
_cell_volume                     669.647
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
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Ca1 0.26660 0.98700 0.16200 0.32500
Na1 0.26660 0.98700 0.16200 0.16000
Ca2 0.27330 0.03090 0.09500 0.32500
Na2 0.27330 0.03090 0.09500 0.16000
Si1 0.00620 0.16320 0.21530 0.59500
Al1 0.00620 0.16320 0.21530 0.40500
Si2 0.00260 0.81630 0.23060 0.59500
Al2 0.00260 0.81630 0.23060 0.40500
Si3 0.68480 0.10880 0.31770 0.59500
Al3 0.68480 0.10880 0.31770 0.40500
Si4 0.68060 0.87900 0.35710 0.59500
Al4 0.68060 0.87900 0.35170 0.40500
Oa1 0.00390 0.12900 0.98080 1.00000
Oa2 0.57990 0.99120 0.27860 1.00000
Obo 0.81300 0.10360 0.18920 1.00000
Obm 0.81580 0.85300 0.24440 1.00000
Oco 0.01430 0.28950 0.28170 1.00000
Ocm 0.01220 0.68660 0.21300 1.00000
Odo 0.19720 0.10740 0.38160 1.00000
Odm 0.19020 0.86600 0.42930 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
Ca1 0.01664 0.08269 0.03693 -0.01146 0.01372 -0.03022
Na1 0.01664 0.08269 0.03693 -0.01146 0.01372 -0.03022
Ca2 0.00573 0.02589 0.02093 0.00859 0.00284 -0.00166
Na2 0.00573 0.02589 0.02093 0.00859 0.00284 -0.00166
Si1 0.01009 0.01503 0.01580 0.00000 0.00591 0.00166
Al1 0.01009 0.01503 0.01580 0.00000 0.00591 0.00166
Si2 0.01146 0.01671 0.01539 0.00573 0.00757 0.00124
Al2 0.01146 0.01671 0.01539 0.00573 0.00757 0.00124
Si3 0.00927 0.01253 0.01826 0.00239 0.00686 0.00083
Al3 0.00927 0.01253 0.01826 0.00239 0.00686 0.00083
Si4 0.00873 0.01086 0.01949 0.00143 0.00804 0.00248
Al4 0.00873 0.01086 0.01949 0.00143 0.00804 0.00248
Oa1 0.02946 0.02840 0.02339 0.00477 0.01680 0.00455
Oa2 0.01282 0.01587 0.02565 0.00191 0.00828 0.00373
Obo 0.02182 0.02172 0.03529 -0.00143 0.01798 -0.00041
Obm 0.02182 0.02840 0.04843 0.00525 0.02295 -0.00166
Oco 0.01882 0.02339 0.02996 -0.00286 0.01207 0.00248
Ocm 0.01882 0.02422 0.02380 0.00764 0.00639 -0.00124
Odo 0.01882 0.02255 0.02319 0.00286 0.00591 0.00248
Odm 0.01964 0.02673 0.03037 0.00334 0.00308 -0.00207