#------------------------------------------------------------------------------
#$Date: 2008-03-10 08:25:41 +0000 (Mon, 10 Mar 2008) $
#$Revision: 255 $
#$URL: svn://www.crystallography.net/cod/cif/9/9007719.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_9007719
loop_
_publ_author_name
'Ohashi H'
'Osawa T'
'Tsukimura K'
_publ_section_title
;
 Refinement of the structure of manganese sodium dimetasilicate
 Locality: synthetic
 Note: pyroxene
 Note: anisoB's from ICSD
;
_journal_name_full               'Acta Crystallographica, Section C'
_journal_page_first              605
_journal_page_last               607
_journal_volume                  43
_journal_year                    1987
_chemical_formula_sum            'Na Mn Si2 O6'
_chemical_name_mineral           Namansilite
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 105.14
_cell_angle_gamma                90
_cell_length_a                   9.513
_cell_length_b                   8.621
_cell_length_c                   5.354
_cell_volume                     423.849
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
NaM2 0.00000 0.29820 0.25000 0.00950
MnM1 0.00000 0.90578 0.25000 0.00317
Si 0.29402 0.08865 0.24630 0.00393
O1 0.11720 0.07610 0.16120 0.00595
O2 0.36090 0.25970 0.30380 0.00823
O3 0.35630 0.00800 0.01910 0.00671
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
NaM2 0.01068 0.00704 0.00885 0.00000 -0.00084 0.00000
MnM1 0.00286 0.00316 0.00379 0.00000 0.00139 0.00000
Si 0.00333 0.00486 0.00368 -0.00012 0.00106 -0.00014
O1 0.00355 0.00892 0.00533 0.00056 0.00113 0.00093
O2 0.00884 0.00689 0.00911 -0.00301 0.00296 -0.00016
O3 0.00508 0.01047 0.00453 0.00104 0.00137 -0.00226