#------------------------------------------------------------------------------
#$Date: 2009-11-18 16:56:34 +0200 (Wed, 18 Nov 2009) $
#$Revision: 858 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/9004261.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_9004261
loop_
_publ_author_name
'Rouse R C'
'Peacor D R'
_publ_section_title
;
 The crystal structure of dissakisite-(Ce),the
 Mg analogue of allanite-(Ce)
 Locality: Balchen Mountain, East Antartica
;
_journal_name_full               'The Canadian Mineralogist'
_journal_page_first              153
_journal_page_last               157
_journal_volume                  31
_journal_year                    1993
_chemical_formula_sum
'Al1.83 Ca Ce0.57 Fe0.145 H La0.33 Mg0.855 Nd0.07 O13 Pr0.03 Si3 Ti0.17'
_[local]_cod_chemical_formula_sum_orig
'Ca (Ce.57 La.33 Nd.07 Pr.03) Al1.83 Ti.17 (Mg.855 Fe.145) Si3 O13 H'
_chemical_name_mineral           Dissakisite-(Ce)
_symmetry_space_group_name_H-M   'P 1 21/m 1'
_cell_angle_alpha                90
_cell_angle_beta                 114.62
_cell_angle_gamma                90
_cell_length_a                   8.905
_cell_length_b                   5.684
_cell_length_c                   10.113
_cell_volume                     465.345
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
x,1/2-y,z
-x,1/2+y,-z
-x,-y,-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Ca1 0.23800 0.25000 0.84800 1.00000 0.00760
Ce2 0.40515 0.25000 0.57282 0.57000 0.00931
La2 0.40515 0.25000 0.57282 0.33000 0.00931
Nd2 0.40515 0.25000 0.57282 0.07000 0.00931
Pr2 0.40515 0.25000 0.57282 0.03000 0.00931
Al1 0.00000 0.00000 0.00000 0.83000 0.00671
Ti1 0.00000 0.00000 0.00000 0.17000 0.00671
Al2 0.00000 0.00000 0.50000 1.00000 0.00291
Mg3 0.29800 0.25000 0.21280 0.85500 0.00570
Fe3 0.29800 0.25000 0.21280 0.14500 0.00570
Si1 0.66240 0.25000 0.96090 1.00000 0.00342
Si2 0.68590 0.25000 0.28070 1.00000 0.00317
Si3 0.81440 0.25000 0.67910 1.00000 0.00291
O1 0.76470 0.00880 0.96570 1.00000 0.00570
O2 0.69190 0.02550 0.64000 1.00000 0.00545
O3 0.79450 0.01380 0.34050 1.00000 0.00431
O4 0.05080 0.25000 0.12930 1.00000 0.00545
O5 0.95400 0.25000 0.85030 1.00000 0.00494
O6 0.93400 0.25000 0.59110 1.00000 0.00367
O7 0.48860 0.25000 0.82350 1.00000 0.00684
O8 0.53740 0.25000 0.32930 1.00000 0.00101
O9 0.61900 0.25000 0.10310 1.00000 0.00089
O10 0.08210 0.25000 0.42660 1.00000 0.00063
H 0.07700 0.25000 0.34900 1.00000 0.02533