#------------------------------------------------------------------------------
#$Date: 2017-01-26 01:37:53 +0100 (jue 26 de ene de 2017) $
#$Revision: 190932 $
#$URL: svn://www.crystallography.net/cod/cif/1/54/51/1545155.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_1545155
loop_
_publ_author_name
'Komatsu, K.'
'Kuribayashi, T.'
'Kudoh, Y.'
_publ_section_title
;
 Effect of temperature and pressure on the crystal structure of topaz,
 Al2SiO4(OH,F)2 : Sample Pax02 at 3.7 GPa
;
_journal_name_full
'Journal of Mineralogical and Petrological Sciences'
_journal_page_first              167
_journal_page_last               180
_journal_volume                  98
_journal_year                    2003
_chemical_formula_sum            'Al2.01 F1.57 H0.43 O4.43 Si'
_chemical_name_common            'natural topaz at 3.7GPa'
_chemical_name_mineral           'topaz Al2.01Si1.00O4F1.57(OH)0.43 at 3.7GPa'
_space_group_IT_number           62
_space_group_name_H-M_alt        'P b n m'
_symmetry_space_group_name_Hall  '-P 2c 2ab'
_symmetry_space_group_name_H-M   'P b n m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   4.6500(9)
_cell_length_b                   8.7996(17)
_cell_length_c                   8.3902(14)
_cell_volume                     343.31(11)
_diffrn_ambient_pressure         3.7E+6
_diffrn_ambient_temperature      298.15
_cod_data_source_file            topaz-3.7GPa_Pax02.cif
_cod_data_source_block           topaz_Pax02@3.7GPa
_cod_original_formula_sum        'Al2.01 Si1.00 O4.43 F1.57 H0.43'
_cod_database_code               1545155
loop_
_space_group_symop_operation_xyz
'x, y, z'
'-x, -y, -z'
'x+1/2, -y+1/2, -z'
'-x+1/2, y+1/2, z'
'-x, -y, z+1/2'
'x, y, -z+1/2'
'-x+1/2, y+1/2, -z+1/2'
'x+1/2, -y+1/2, z+1/2'
loop_
_atom_site_label
_atom_site_occupancy
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_adp_type
_atom_site_U_iso_or_equiv
_atom_site_type_symbol
Al 1.0 0.90376(39) 0.13131(20) 0.08173(13) Uiso 0.007770 Al
Si 1.0 0.60110(46) 0.05964(26) 0.750000 Uiso 0.005760 Si
O1 1.0 0.70907(115) 0.02782(72) 0.250000 Uiso 0.008330 O
O2 1.0 0.04344(109) 0.25583(65) 0.250000 Uiso 0.006960 O
O3 1.0 0.21260(79) 0.99085(43) 0.09179(28) Uiso 0.007170 O
F 1.0 0.59515(21) 0.25297(37) 0.06036(23) Uiso 0.008920 F
