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#$Date: 2008-03-10 10:25:41 +0200 (Mon, 10 Mar 2008) $
#$Revision: 255 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/9000327.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_9000327
loop_
_publ_author_name
'Cameron M'
'Sueno S'
'Prewitt C T'
'Papike J J'
_publ_section_title
;
 High-temperature crystal chemistry of acmite, diopside, hedenbergite, jadeite,
 spodumene, and ureyite
 T = 24 C
 pyroxene
;
_journal_name_full               'American Mineralogist'
_journal_page_first              594
_journal_page_last               618
_journal_volume                  58
_journal_year                    1973
_chemical_formula_sum            'Si2 Fe Na O6'
_chemical_name_mineral           Aegirine
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 107.42
_cell_angle_gamma                90
_cell_length_a                   9.658
_cell_length_b                   8.795
_cell_length_c                   5.294
_cell_volume                     429.059
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
Si 0.29050 0.08940 0.23510
Fe1 0.00000 0.89890 0.25000
Na2 0.00000 0.29990 0.25000
O1 0.11410 0.07840 0.13800
O2 0.35820 0.25580 0.30010
O3 0.35180 0.00790 0.01180
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
Si 0.00215 0.00286 0.00498 -0.00033 -0.00068 -0.00002
Fe1 0.00353 0.00337 0.00591 0.00000 -0.00045 0.00000
Na2 0.01458 0.00741 0.01072 0.00000 -0.00281 0.00000
O1 0.00250 0.00486 0.00600 -0.00057 -0.00125 0.00027
O2 0.00572 0.00333 0.00967 -0.00218 0.00038 0.00000
O3 0.00460 0.00745 0.00662 0.00070 0.00002 -0.00191