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#$Date: 2016-02-16 14:49:47 +0200 (Tue, 16 Feb 2016) $
#$Revision: 176465 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/00/07/9000717.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided the American Mineralogist Crystal Structure Database,
# http://rruff.geo.arizona.edu/AMS/amcsd.php
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_9000717
loop_
_publ_author_name
'Winter, J. K.'
'Ghose, S.'
_publ_section_title
;
 Thermal expansion and high-temperature crystal chemistry of the Al2SiO5
 polymorphs
 T = 600 deg C
;
_journal_name_full               'American Mineralogist'
_journal_page_first              573
_journal_page_last               586
_journal_volume                  64
_journal_year                    1979
_chemical_formula_sum            'Al2 O5 Si'
_chemical_name_mineral           Andalusite
_space_group_IT_number           58
_symmetry_space_group_name_Hall  '-P 2 2n'
_symmetry_space_group_name_H-M   'P n n m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   7.8556
_cell_length_b                   7.9424
_cell_length_c                   5.5642
_cell_volume                     347.163
_diffrn_ambient_temperature      873.15
_exptl_crystal_density_diffrn    3.100
_cod_original_formula_sum        'Al2 Si O5'
_cod_database_code               9000717
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
1/2+x,1/2-y,1/2+z
1/2-x,1/2+y,1/2-z
1/2-x,1/2+y,1/2+z
1/2+x,1/2-y,1/2-z
x,y,-z
-x,-y,z
-x,-y,-z
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
Al1 0.02157 0.01790 0.00769 0.00664 0.00000 0.00000
Al2 0.00844 0.01438 0.01020 -0.00063 0.00000 0.00000
Si 0.00813 0.01246 0.00894 0.00032 0.00000 0.00000
Oa 0.01094 0.01758 0.01051 -0.00379 0.00000 0.00000
Ob 0.01000 0.01406 0.03372 0.00126 0.00000 0.00000
Oc 0.01501 0.01438 0.01098 -0.00284 0.00000 0.00000
Od 0.01532 0.02013 0.01129 -0.00348 -0.00332 0.00313
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Al1 0.00000 0.00000 0.24190
Al2 0.37180 0.13980 0.50000
Si 0.24620 0.25410 0.00000
Oa 0.42360 0.36460 0.00000
Ob 0.10310 0.40080 0.00000
Oc 0.42490 0.36300 0.50000
Od 0.23290 0.13640 0.23920