data_global
_chemical_name_mineral 'Allanite-(Ce)'
loop_
_publ_author_name
'Dollase W A'
_journal_name_full 'American Mineralogist'
_journal_volume 56 
_journal_year 1971
_journal_page_first 447
_journal_page_last 464
_publ_section_title
;
 Refinement of the crystal structures of epidote, allanite and hancockite
;
_database_code_amcsd 0000227
_chemical_formula_sum 'Ca1.26 Ce.74 Si3 Al1.83 Fe1.17 O13 H'
_cell_length_a 8.927
_cell_length_b 5.761
_cell_length_c 10.150
_cell_angle_alpha 90
_cell_angle_beta 114.77
_cell_angle_gamma 90
_cell_volume 473.973
_exptl_crystal_density_diffrn      3.939
_symmetry_space_group_name_H-M 'P 1 21/m 1'
loop_
_space_group_symop_operation_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   0.75850   0.75000   0.15170   1.00000   0.01267
Ce2   0.59360   0.75000   0.42860   0.74000   0.00887
Ca2   0.59360   0.75000   0.42860   0.26000   0.00887
Si1   0.33890   0.75000   0.03690   1.00000   0.00887
Si2   0.68660   0.25000   0.27990   1.00000   0.00887
Si3   0.18800   0.75000   0.32400   1.00000   0.00760
Al1   0.00000   0.00000   0.00000   0.66000   0.00760
Fe1   0.00000   0.00000   0.00000   0.34000   0.00760
Al2   0.00000   0.00000   0.50000   1.00000   0.00760
Fe3   0.30300   0.25000   0.21480   0.83000   0.01140
Al3   0.30300   0.25000   0.21480   0.17000   0.01140
O1   0.23390   0.98920   0.02630   1.00000   0.01646
O2   0.31090   0.96790   0.36300   1.00000   0.01393
O3   0.79620   0.01440   0.33760   1.00000   0.01267
O4   0.05610   0.25000   0.13060   1.00000   0.01520
O5   0.04940   0.75000   0.15290   1.00000   0.01520
O6   0.06740   0.75000   0.41190   1.00000   0.01140
O7   0.50700   0.75000   0.17790   1.00000   0.01267
O8   0.53960   0.25000   0.33140   1.00000   0.01900
O9   0.61340   0.25000   0.10370   1.00000   0.02153
O-H10   0.08580   0.25000   0.42800   1.00000   0.01520
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 0.01964 0.01261 0.01721 0.00000 0.01173 0.00000
Ce2 0.00699 0.01261 0.00473 0.00000 0.00114 0.00000
Ca2 0.00699 0.01261 0.00473 0.00000 0.00114 0.00000
Fe3 0.00732 0.01160 0.01377 0.00000 0.00265 0.00000
Al3 0.00732 0.01160 0.01377 0.00000 0.00265 0.00000