#------------------------------------------------------------------------------
#$Date: 2024-04-25 16:59:02 +0200 (jue 25 de abr de 2024) $
#$Revision: 291351 $
#$URL: svn://www.crystallography.net/cod/cif/9/00/58/9005806.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_9005806
loop_
_publ_author_name
'Koepke, J.'
'Schulz, H.'
_publ_section_title
;
 Single crystal structure investigations under high-pressure of the
 mineral cordierite with an improved high-pressure cell
 Sample: P = 2.2 GPa
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              165
_journal_page_last               173
_journal_paper_doi               10.1007/BF00308159
_journal_volume                  13
_journal_year                    1986
_chemical_compound_source        'Zabargad island, Red Sea'
_chemical_formula_sum            'Al4 Mg2 O18 Si5'
_chemical_name_mineral           Cordierite
_space_group_IT_number           66
_symmetry_space_group_name_Hall  '-C 2 2c'
_symmetry_space_group_name_H-M   'C c c m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   16.975
_cell_length_b                   9.647
_cell_length_c                   9.274
_cell_formula_units_Z            4
_cell_volume                     1518.690
_database_code_amcsd             0007388
_diffrn_ambient_pressure         2.2e+06
_exptl_crystal_density_diffrn    2.558
_cod_original_formula_sum        'Mg2 Al4 Si5 O18'
_cod_database_code               9005806
loop_
_space_group_symop_operation_xyz
x,y,z
1/2+x,1/2+y,z
x,-y,1/2+z
1/2+x,1/2-y,1/2+z
-x,y,1/2-z
1/2-x,1/2+y,1/2-z
-x,y,1/2+z
1/2-x,1/2+y,1/2+z
x,-y,1/2-z
1/2+x,1/2-y,1/2-z
x,y,-z
1/2+x,1/2+y,-z
-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_U_iso_or_equiv
Mg 0.16220 0.50000 0.25000 0.00740
Al11 0.25000 0.25000 0.24730 0.00760
Si16 0.00000 0.50000 0.25000 0.00320
Si21 0.19380 0.07700 0.00000 0.00630
Al26 0.05200 0.30550 0.00000 0.00690
Si23 -0.13480 0.23690 0.00000 0.00110
O11 0.24730 0.10330 0.14260 0.00580
O16 0.06250 0.41520 0.15020 0.00650
O13 -0.17340 0.31270 0.14140 0.00550
O21 0.12270 0.18330 0.00000 0.00500
O26 -0.04300 0.24410 0.00000 0.01820
O23 -0.16460 0.08120 0.00000 0.00980
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 AMCSD 0007388
