data_global
_chemical_name_mineral 'Fluorcaphite'
loop_
_publ_author_name
'Chakhmouradian A R'
'Hughes J M'
'Rakovan J F'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 43 
_journal_year 2005
_journal_page_first 735
_journal_page_last 746
_publ_section_title
;
 Fluorcaphite, a second occurrence and detailed structural analysis:
 Simultaneous accommodation of Ca, Sr, Na, LREE in the apatite atomic arrangement
 Sample: Mt. Selsurt, Lovozero, Russia
;
_database_code_amcsd 0006014
_chemical_formula_sum 'Ca2.45 Sr1.591 Na.585 Ce.22 La.134 Nd.02 P3 O12.042 (F.958 H.042)'
_cell_length_a 9.4456
_cell_length_b 9.4456
_cell_length_c 6.9520
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 537.155
_exptl_crystal_density_diffrn      3.754
_symmetry_space_group_name_H-M 'P 63'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x-y,x,1/2+z'
  '-y,x-y,z'
  '-x,-y,1/2+z'
  '-x+y,-x,z'
  'y,-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
Ca1   0.66667   0.33333   0.00000   0.48000   0.01470
Sr1   0.66667   0.33333   0.00000   0.11500   0.01470
Na1   0.66667   0.33333   0.00000   0.29000   0.01470
Ce1   0.66667   0.33333   0.00000   0.11000   0.01470
La1   0.66667   0.33333   0.00000   0.00500   0.01470
Ca1*   0.66667   0.33333   0.50130   0.57500   0.01140
Na1*   0.66667   0.33333   0.50130   0.29500   0.01140
Ce1*   0.66667   0.33333   0.50130   0.11000   0.01140
Nd1*   0.66667   0.33333   0.50130   0.02000   0.01140
Sr2   0.76156   0.01185   0.25000   0.49200   0.01133
Ca2   0.76156   0.01185   0.25000   0.46500   0.01133
La2   0.76156   0.01185   0.25000   0.04300   0.01133
P   0.60116  -0.36970   0.25220   1.00000   0.00992
O1   0.84353   0.32851   0.25490   1.00000   0.01670
O2   0.41362  -0.46562   0.25370   1.00000   0.01970
O3   0.65320  -0.25910   0.07360   1.00000   0.02060
O3*   0.66510  -0.25730   0.42710   1.00000   0.02440
F   0.00000   0.00000   0.24800   0.95800   0.03720
O-H   0.00000   0.00000   0.24800   0.04200   0.03720