data_global
_chemical_name_mineral 'Ancylite-(Ce)'
loop_
_publ_author_name
'Belovitskaya Y V'
'Pekov I V'
'Gobechiya E R'
'Yamnova N A'
'Kabalov Y K'
'Chukanov N V'
'Schneider J'
_journal_name_full 'Crystallography Reports'
_journal_volume 47 
_journal_year 2002
_journal_page_first 223
_journal_page_last 228
_publ_section_title
;
 Crystal structures of two ancylite modifications
 Sample: Specimen 52
;
_database_code_amcsd 0012378
_chemical_compound_source 'Lovchorrite Mine, Hackman Velley, Khibiny massif, Kola Peninsula, Russia'
_chemical_formula_sum '(Sr.97 Ca.02 Ba.01) Ce.52 La.28 Nd.11 Pr.04 Sm.01 C2 O7.73 F.13 H2.63'
_cell_length_a 5.0634
_cell_length_b 8.5898
_cell_length_c 7.2781
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 316.551
_exptl_crystal_density_diffrn      3.932
_symmetry_space_group_name_H-M 'P m c 21'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,-y,1/2+z'
  '-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
SrM1   0.00000   0.09770   0.64370   0.97000   0.00608
CaM1   0.00000   0.09770   0.64370   0.02000   0.00608
BaM1   0.00000   0.09770   0.64370   0.01000   0.00608
CeM2   0.50000   0.58970   0.84750   0.52000   0.00836
LaM2   0.50000   0.58970   0.84750   0.28000   0.00836
NdM2   0.50000   0.58970   0.84750   0.11000   0.00836
PrM2   0.50000   0.58970   0.84750   0.04000   0.00836
SmM2   0.50000   0.58970   0.84750   0.01000   0.00836
C1   0.00000   0.55400   0.19100   1.00000   0.02406
C2   0.50000   0.05600   0.30800   1.00000   0.02280
O11   0.00000   0.41800   0.27100   1.00000   0.02660
O12   0.50000   0.91900   0.24400   1.00000   0.01773
O21   0.27700   0.12200   0.35200   1.00000   0.01646
O22   0.22300   0.61700   0.15100   1.00000   0.01900
Wat31   0.00000   0.20400   0.99200   0.90000   0.01773
O-H32   0.50000   0.66000   0.51600   0.83000   0.01267
F32   0.50000   0.66000   0.51600   0.13000   0.01267