data_global
_chemical_name_mineral 'Widenmannite'
loop_
_publ_author_name
'Plasil J'
'Palatinus L'
'Rohlicek J'
'Houdkovaq L'
'Klementova M'
'Golias V'
'Skacha P'
_journal_name_full 'American Mineralogist'
_journal_volume 99 
_journal_year 2014
_journal_page_first 276
_journal_page_last 282
_publ_section_title
;
 Crystal structure of lead uranyl carbonate mineral widenmannite:
 Precession electron-diffraction and synchrotron powder-diffraction study
 Note: data collected at synchrotron
;
_database_code_amcsd 0020039
_chemical_compound_source 'Brezove Hory deposit, Pribram ore district, Czech Republic'
_chemical_formula_sum 'Pb.926 U.5 O4.926 C H'
_cell_length_a 4.9770
_cell_length_b 9.3869
_cell_length_c 8.9597
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 418.585
_exptl_crystal_density_diffrn      6.390
_symmetry_space_group_name_H-M 'P m m n'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,-y,z'
  '1/2-x,1/2+y,-z'
  '-x,y,z'
  '1/2+x,1/2-y,-z'
  '1/2+x,1/2+y,-z'
  '-x,-y,z'
  '1/2-x,1/2-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
Pb1   0.50000   0.74140   0.17230   0.92600   0.05600
U1   0.50000   0.50000   0.57470   0.92600   0.01200
O1   1.00000   0.50000   0.56700   1.00000   0.00200
O2   0.77500   0.50000   0.35000   1.00000   0.00200
O3   0.50000   0.69200   0.57600   0.92600   0.00200
C1   1.00000   0.50000   0.42200   1.00000   0.00200
O4   0.27200   0.50000   0.81800   1.00000   0.00200
C2   0.50000   0.50000   0.89100   1.00000   0.00200
O5   0.50000   0.50000   0.03600   1.00000   0.00200
O6   0.50000   0.81600  -0.07800   1.00000   0.00200
U2   0.50000   0.00000   0.89300   0.07400   0.07000
H1   0.50000   0.89479  -0.11729   1.00000   0.00230
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
Pb1 0.08700 0.03800 0.04400 0.00000 0.00000 -0.00800