#------------------------------------------------------------------------------
#$Date: 2024-05-29 17:00:33 +0300 (Wed, 29 May 2024) $
#$Revision: 292100 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/01/69/9016944.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_9016944
loop_
_publ_author_name
'Jacob, D.'
'Palatinus, L.'
'Cuvillier, P.'
'Leroux, H.'
'Domeneghetti, C.'
'Camara, F.'
_publ_section_title
;
 Ordering state in orthopyroxene as determined by precession electron diffraction
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1526
_journal_page_last               1534
_journal_volume                  98
_journal_year                    2013
_chemical_compound_source
'Wilson Terrane, North Victoria Land, Antarctica'
_chemical_formula_sum            'Fe0.292 Mg0.709 O3 Si'
_chemical_name_mineral           Enstatite
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_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                   18.2810
_cell_length_b                   8.8732
_cell_length_c                   5.2070
_cell_formula_units_Z            16
_cell_volume                     844.633
_database_code_amcsd             0020254
_exptl_crystal_density_diffrn    3.447
_cod_data_source_file            inputs/fixed/downloads/05/05572.cif
_cod_data_source_block           05572
_cod_original_formula_sum        '(Fe.292 Mg.709) Si O3'
_cod_database_code               9016944
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
FeM1 0.37558 0.65444 0.87128 0.02800 0.00773
MgM1 0.37558 0.65444 0.87128 0.97200 0.00773
MgM2 0.37802 0.48350 0.36510 0.44500 0.01024
FeM2 0.37802 0.48350 0.36510 0.55500 0.01024
SiA 0.27155 0.34090 0.05139 1.00000 0.00701
SiB 0.47390 0.33682 0.79702 1.00000 0.00690
O1A 0.18346 0.33834 0.04160 1.00000 0.00840
O1B 0.56252 0.33758 0.79840 1.00000 0.00840
O2A 0.31115 0.50120 0.05030 1.00000 0.00990
O2B 0.43370 0.48491 0.69470 1.00000 0.01040
O3A 0.30263 0.22825 -0.17340 1.00000 0.01100
O3B 0.44724 0.19936 0.59760 1.00000 0.01070
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 AMCSD 0020254
