data_global
_chemical_name_mineral 'Britholite-(Y)'
loop_
_publ_author_name
'Noe D C'
'Hughes J M'
'Mariano A N'
'Drexler J W'
'Kato A'
_journal_name_full 'Zeitschrift fur Kristallographie'
_journal_volume 206 
_journal_year 1993
_journal_page_first 233
_journal_page_last 246
_publ_section_title
;
 The crystal structure of monoclinic britholite-(Ce) and britholite-(Y)
 Note: annealed sample
;
_database_code_amcsd 0011045
_chemical_compound_source 'Suishoyama, Japan'
_chemical_formula_sum 'Y4.63 Ca.23 Lu.14 Si3 O12.07 (F.93 H.07)'
_cell_length_a 9.3619
_cell_length_b 9.3636
_cell_length_c 6.7306
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120.0121
_cell_volume 510.903
_exptl_crystal_density_diffrn      4.813
_symmetry_space_group_name_H-M 'P 1 1 21'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-y,1/2+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
Y1a   0.33300   0.66660   0.98540   0.96000   0.01710
Ca1a   0.33300   0.66660   0.98540   0.04000   0.01710
Ca1b   0.33370   0.66670   0.48840   0.19000   0.00887
Y1b   0.33370   0.66670   0.48840   0.81000   0.00887
Y2a   0.99496   0.24204   0.23590   0.96000   0.01165
Lu2a   0.99496   0.24204   0.23590   0.04000   0.01165
Y2b   0.24209   0.24715   0.73740   0.95000   0.01241
Lu2b   0.24209   0.24715   0.73740   0.05000   0.01241
Y2c   0.24711   0.00505   0.23810   0.95000   0.01229
Lu2c   0.24711   0.00505   0.23810   0.05000   0.01229
Si1   0.02650   0.62820   0.25000   1.00000   0.00811
Si2   0.37120   0.39810   0.23340   1.00000   0.00760
Si3   0.60170   0.97310   0.23400   1.00000   0.00912
O1a   0.83200   0.50740   0.23600   1.00000   0.02280
O1b   0.49150   0.32360   0.25100   1.00000   0.02406
O1c   0.67620   0.16860   0.24200   1.00000   0.02533
O2a   0.40260   0.87190   0.21600   1.00000   0.01140
O2b   0.46890   0.59750   0.21700   1.00000   0.01393
O2c   0.12750   0.53120   0.27100   1.00000   0.01393
O3a   0.63780   0.89980   0.04800   1.00000   0.01520
O3b   0.68970   0.92680   0.42000   1.00000   0.02406
O3c   0.26150   0.36210   0.04600   1.00000   0.01140
O3d   0.23660   0.30950   0.41900   1.00000   0.02406
O3e   0.07310   0.76320   0.07000   1.00000   0.02280
O3f   0.10130   0.73860   0.44500   1.00000   0.01013
F   0.00030   0.00070   0.21200   0.93000   0.03040
O-H   0.00030   0.00070   0.21200   0.07000   0.03040