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#$Date: 2024-05-09 11:47:05 +0300 (Thu, 09 May 2024) $
#$Revision: 291792 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/01/08/9010892.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_9010892
loop_
_publ_author_name
'Gatta, G. D.'
'Rinaldi, R.'
'Knight, K. S.'
'Molin, G.'
'Artioli, G.'
_publ_section_title
;
 High temperature structural and thermoelastic behaviour of mantle
 orthopyroxene: an in situ neutron powder diffraction study
 Sample: T = 1,100 C
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              185
_journal_page_last               200
_journal_paper_doi               10.1007/s00269-006-0138-2
_journal_volume                  34
_journal_year                    2007
_chemical_formula_sum            'Al0.03 Fe0.15 Mg1.82 O6 Si1.97'
_chemical_name_mineral           Enstatite
_space_group_IT_number           61
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   18.4314
_cell_length_b                   8.9520
_cell_length_c                   5.2674
_cell_formula_units_Z            8
_cell_volume                     869.110
_database_code_amcsd             0009062
_diffrn_ambient_temperature      1373.15
_exptl_crystal_density_diffrn    3.130
_cod_original_formula_sum        'Mg1.82 Fe.15 Si1.97 Al.03 O6'
_cod_database_code               9010892
loop_
_space_group_symop_operation_xyz
x,y,z
x,1/2-y,1/2+z
-x,1/2+y,1/2-z
1/2-x,1/2+y,z
1/2+x,1/2-y,-z
1/2+x,y,1/2-z
1/2-x,-y,1/2+z
-x,-y,-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
MgM1 0.38090 0.65180 0.88890 0.92500 0.04020
FeM1 0.38090 0.65180 0.88890 0.06500 0.04020
MgM2 0.37360 0.48550 0.36480 0.89500 0.04412
FeM2 0.37360 0.48550 0.36480 0.08500 0.04412
SiA 0.27120 0.34750 0.06120 1.00000 0.01488
SiB 0.47510 0.33920 0.77690 0.97000 0.01488
AlB 0.47510 0.33920 0.77690 0.03000 0.01488
O1A 0.18530 0.33860 0.05160 1.00000 0.01687
O1B 0.56270 0.34290 0.78630 1.00000 0.01687
O2A 0.31120 0.50450 0.04670 1.00000 0.01687
O2B 0.43210 0.49340 0.70260 1.00000 0.01687
O3A 0.30260 0.23480 -0.17020 1.00000 0.01687
O3B 0.44990 0.20610 0.57920 1.00000 0.01687
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 AMCSD 0009062
