data_global
_chemical_name_mineral 'Burbankite'
loop_
_publ_author_name
'Onac B P'
'Bernhardt H J'
'Effenberger H'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 21 
_journal_year 2009
_journal_page_first 507
_journal_page_last 514
_publ_section_title
;
 Authigenic burbankite in the Cioclovina Cave sediments (Romania)
;
_database_code_amcsd 0007286
_chemical_compound_source 'Cioclovina Cave sediments, Romania'
_chemical_formula_sum 'Na2.46 Ca.99 Sr1.71 Ba.33 Y.09 Ce.15 La.06 Nd.06 Pr.03 Th.09 C5 O15'
_cell_length_a 10.514
_cell_length_b 10.514
_cell_length_c 6.477
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 620.070
_exptl_crystal_density_diffrn      3.549
_symmetry_space_group_name_H-M 'P 63 m c'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-x+y,1/2+z'
  'x-y,x,1/2+z'
  '-y,-x,z'
  '-y,x-y,z'
  'x-y,-y,1/2+z'
  '-x,-y,1/2+z'
  'x,x-y,z'
  '-x+y,-x,z'
  'y,x,1/2+z'
  'y,-x+y,1/2+z'
  '-x+y,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
NaA   0.52343  -0.52343   0.31280   0.82000   0.02220
CaA   0.52343  -0.52343   0.31280   0.17000   0.02220
SrB   0.84125  -0.84125   0.00000   0.57000   0.01472
CaB   0.84125  -0.84125   0.00000   0.16000   0.01472
BaB   0.84125  -0.84125   0.00000   0.11000   0.01472
YB   0.84125  -0.84125   0.00000   0.03000   0.01472
CeB   0.84125  -0.84125   0.00000   0.05000   0.01472
LaB   0.84125  -0.84125   0.00000   0.02000   0.01472
NdB   0.84125  -0.84125   0.00000   0.02000   0.01472
PrB   0.84125  -0.84125   0.00000   0.01000   0.01472
ThB   0.84125  -0.84125   0.00000   0.03000   0.01472
C1   0.79990  -0.79990   0.53720   1.00000   0.01510
C2   0.00000   0.00000   0.83130   1.00000   0.01720
C3   0.33333   0.66667   0.49000   1.00000   0.01770
O1   0.37490   0.08150   0.63080   1.00000   0.02400
O2   0.93040  -0.93040   0.33530   1.00000   0.03160
O3   0.40439  -0.40439   0.48640   1.00000   0.02420
O4   0.77560  -0.77560   0.35330   1.00000   0.02450
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
NaA 0.01900 0.01900 0.02730 0.00850 0.00020 -0.00020
CaA 0.01900 0.01900 0.02730 0.00850 0.00020 -0.00020
SrB 0.01338 0.01338 0.01632 0.00589 0.00071 -0.00071
CaB 0.01338 0.01338 0.01632 0.00589 0.00071 -0.00071
BaB 0.01338 0.01338 0.01632 0.00589 0.00071 -0.00071
YB 0.01338 0.01338 0.01632 0.00589 0.00071 -0.00071
CeB 0.01338 0.01338 0.01632 0.00589 0.00071 -0.00071
LaB 0.01338 0.01338 0.01632 0.00589 0.00071 -0.00071
NdB 0.01338 0.01338 0.01632 0.00589 0.00071 -0.00071
PrB 0.01338 0.01338 0.01632 0.00589 0.00071 -0.00071
ThB 0.01338 0.01338 0.01632 0.00589 0.00071 -0.00071
C1 0.01440 0.01440 0.01700 0.00710 0.00150 -0.00150
C2 0.01700 0.01700 0.01700 0.00850 0.00000 0.00000
C3 0.01900 0.01900 0.01400 0.00970 0.00000 0.00000
O1 0.02240 0.01790 0.03120 0.00960 -0.00240 0.00470
O2 0.02500 0.02500 0.05300 0.01900 0.00060 -0.00060
O3 0.02960 0.02960 0.02140 0.02080 0.00060 -0.00060
O4 0.02400 0.02400 0.02510 0.01170 -0.00190 0.00190