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#$Date: 2010-06-10 18:11:07 +0300 (Thu, 10 Jun 2010) $
#$Revision: 1210 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/9010072.cif $
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#
# 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_9010072
loop_
_publ_author_name
'Redhammer, G. J.'
'Amthauer, G.'
'Roth, G.'
'Tippelt, G.'
'Lottermoser, W.'
_publ_section_title
;
 Single crystal X-ray diffraction and temperature dependent 57Fe Mossbauer
 spectroscopy on the hedenbergite - aegirine (Ca,Na)(Fe2+,Fe3+)Si2O6 solid solution
 Locality: synthetic
 Sample: Hd21, T = 298 K
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1271
_journal_page_last               1292
_journal_volume                  91
_journal_year                    2006
_chemical_formula_sum            'Ca Fe O6 Si2'
_chemical_name_mineral           Hedenbergite
_space_group_IT_number           15
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 104.775
_cell_angle_gamma                90
_cell_length_a                   9.8450
_cell_length_b                   9.0293
_cell_length_c                   5.2450
_cell_volume                     450.830
_diffrn_ambient_temperature      298
_exptl_crystal_density_diffrn    3.655
_[local]_cod_chemical_formula_sum_orig 'Ca Fe Si2 O6'
_cod_database_code               9010072
_amcsd_database_code             AMCSD#0004192
loop_
_symmetry_equiv_pos_as_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,-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
Ca2 0.00000 0.30030 0.25000 0.00720
Fe1 0.00000 0.90750 0.25000 0.00460
Si 0.28780 0.09240 0.23250 0.00360
O1 0.11960 0.09010 0.15230 0.00550
O2 0.36280 0.24640 0.32320 0.00750
O3 0.35010 0.01970 0.99260 0.00610