data_global
_chemical_name_mineral 'Kihlmanite-(Ce)'
loop_
_publ_author_name
'Yakovenchuk V N'
'Krivovichev S V'
'Ivanyuk G Y'
'Pakhomovsky Y A'
'Selivanova E A'
'Zhitova E A'
'Kalashnikova G O'
'Zolotarev A A'
'Mikhailova J A'
'Kadyrova G I'
_journal_name_full 'Mineralogical Magazine'
_journal_volume 78 
_journal_year 2014
_journal_page_first 483
_journal_page_last 496
_publ_section_title
;
 Kihlmanite-(Ce), Ce2TiO2[SiO4](HCO3)2(H2O), a new rare-earth mineral from
 the pegmatites of the Khibiny alkaline massif, Kola Peninsula, Russia
;
_database_code_amcsd 0020209
_chemical_compound_source 'Khibiny alkaline massif, Kola Peninsula, Russia'
_chemical_formula_sum 'Ce4 (Ti1.52 Nb.48) Si2 O25.68 C4 Ca.62 H3.36'
_cell_length_a 5.009
_cell_length_b 7.533
_cell_length_c 15.407
_cell_angle_alpha 103.061
_cell_angle_beta 91.006
_cell_angle_gamma 109.285
_cell_volume 531.839
_exptl_crystal_density_diffrn      3.813
_symmetry_space_group_name_H-M 'P -1'
loop_
_space_group_symop_operation_xyz
  'x,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
Ce1   0.22880   0.38821   0.19835   0.97300   0.02230
Ce2  -0.05360  -0.17637   0.19757   0.96600   0.02410
Ti   0.30730   0.61480   0.99972   0.76000   0.01760
Nb   0.30730   0.61480   0.99972   0.24000   0.01760
Si   0.50230   0.06840   0.12890   1.00000   0.01780
O1   0.28200  -0.14760   0.07590   1.00000   0.01500
O2   0.46700   0.22810   0.07620   1.00000   0.01500
O3   0.35100   0.11740   0.22070   1.00000   0.02200
O4  -0.05000   0.52880   0.92500   1.00000   0.01400
O5   0.61500   0.60980   0.07470   1.00000   0.01500
O6   0.82300   0.07640   0.14750   1.00000   0.02400
O7  -0.21300  -0.49330   0.23690   1.00000   0.03000
O8   0.40200   0.74380   0.23950   1.00000   0.03300
O9  -0.42900  -0.51600   0.35910   1.00000   0.05700
O10  -0.00800  -0.57500   0.34410   1.00000   0.06500
O11   0.27100   0.89400   0.35930   1.00000   0.08800
O12   0.76900   0.94500   0.34290   1.00000   0.09000
C1  -0.21800  -0.52400   0.31810   1.00000   0.04200
C2   0.49400   0.86600   0.31930   1.00000   0.05500
Ca1   0.31200   0.48900   0.48390   0.22000   0.01500
Ca2   0.00000   0.00000   0.00000   0.18000   0.03300
Wat1   0.30400   0.58300   0.49240   0.52000   0.03800
Wat2   0.00000   0.00000   0.04000   0.32000 ?
CeQ1   0.34200   0.37000   0.20250   0.02700   0.00700
CeQ2   0.04600  -0.19700   0.20600   0.03400   0.02100