#------------------------------------------------------------------------------
#$Date: 2013-05-05 17:21:46 +0300 (Sun, 05 May 2013) $
#$Revision: 85285 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/00/22/9002250.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_9002250
loop_
_publ_author_name
'Yang, H.'
'Prewitt, C. T.'
_publ_section_title
;
 Crystal structure and compressibility of a two-layer polytype
 of pseudowollastonite (CaSiO3)
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1902
_journal_page_last               1905
_journal_volume                  84
_journal_year                    1999
_chemical_formula_sum            'Ca O3 Si'
_chemical_name_mineral           Pseudowollastonite
_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                 111.245
_cell_angle_gamma                90
_cell_length_a                   11.8322
_cell_length_b                   6.8624
_cell_length_c                   10.5297
_cell_volume                     796.878
_exptl_crystal_density_diffrn    2.905
_[local]_cod_chemical_formula_sum_orig 'Ca Si O3'
_cod_database_code               9002250
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_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
Ca1 0.00678 0.00835 0.00342 0.00115 0.00055 0.00034
Ca2 0.00616 0.01384 0.00439 0.00307 0.00164 -0.00136
Si1 0.00431 0.00763 0.00244 0.00077 0.00110 0.00034
Si2 0.00616 0.00549 0.00293 0.00000 0.00055 0.00000
O1 0.01109 0.01503 0.00439 0.00230 0.00329 -0.00034
O2 0.00863 0.01909 0.00683 0.00498 0.00055 0.00102
O3 0.00863 0.00787 0.01025 0.00038 0.00603 -0.00034
O4 0.01417 0.01193 0.00488 -0.00077 0.00219 -0.00341
O5 0.00801 0.00978 0.00976 0.00000 0.00493 0.00000
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Ca1 0.08700 0.24030 0.49890
Ca2 0.25000 0.25000 0.00000
Si1 0.12780 0.45300 0.24450
Si2 0.00000 0.84000 0.25000
O1 0.12750 0.40450 0.09650
O2 0.22900 0.39910 0.38630
O3 0.11090 0.69290 0.24780
O4 0.04970 0.94360 0.39390
O5 0.00000 0.35920 0.25000