#------------------------------------------------------------------------------
#$Date: 2012-02-28 17:44:07 +0200 (Tue, 28 Feb 2012) $
#$Revision: 35913 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/00/25/9002512.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_9002512
loop_
_publ_author_name
'Oberti, R.'
'Caucia, F.'
'Ungaretti, L.'
_publ_section_title
;
 Determination of site population in olivine: Warnings on X-ray data
 treatment and refinement
 Sample: F**2-refinement using CRYSTALS
 Fo92Fa08
;
_journal_name_full               'American Mineralogist'
_journal_page_first              55
_journal_page_last               65
_journal_volume                  86
_journal_year                    2001
_chemical_formula_sum            'Fe0.16 Mg1.84 O4 Si'
_chemical_name_mineral           Olivine
_space_group_IT_number           62
_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_length_a                   4.7579
_cell_length_b                   10.2151
_cell_length_c                   5.9890
_cell_volume                     291.080
_exptl_crystal_density_diffrn    3.326
_[local]_cod_chemical_formula_sum_orig '(Mg1.84 Fe.16) Si O4'
_cod_database_code               9002512
_amcsd_database_code             AMCSD#0002600
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
x,y,1/2-z
-x,-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,z
1/2+x,1/2-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
Mg1 0.00473 0.00632 0.00511 0.00018 -0.00065 -0.00107
Fe1 0.00473 0.00632 0.00511 0.00018 -0.00065 -0.00107
Mg2 0.00619 0.00422 0.00595 0.00010 0.00000 0.00000
Fe2 0.00619 0.00422 0.00595 0.00010 0.00000 0.00000
Si 0.00308 0.00375 0.00452 0.00014 0.00000 0.00000
O1 0.00357 0.00658 0.00599 0.00023 0.00000 0.00000
O2 0.00554 0.00388 0.00655 0.00002 0.00000 0.00000
O3 0.00547 0.00624 0.00565 0.00032 -0.00020 0.00150
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Mg1 0.00000 0.00000 0.00000 0.92000
Fe1 0.00000 0.00000 0.00000 0.08000
Mg2 0.99010 0.27760 0.25000 0.92000
Fe2 0.99010 0.27760 0.25000 0.08000
Si 0.42670 0.09430 0.25000 1.00000
O1 0.76610 0.09180 0.25000 1.00000
O2 0.22080 0.44750 0.25000 1.00000
O3 0.27810 0.16330 0.03330 1.00000