data_global
_chemical_name_mineral 'Cuprosklodowskite'
loop_
_publ_author_name
'Rosenzweig A'
'Ryan R R'
_journal_name_full 'American Mineralogist'
_journal_volume 60 
_journal_year 1975
_journal_page_first 448
_journal_page_last 453
_publ_section_title
;
 Refinement of the crystal structure of cuprosklodowskite,
 Cu[(UO2)2(SiO3OH)2]*6(H2O)
 Note: y(U) was changed to reproduce reported bond lengths
 Locality: Musonoi mine, Kolwezi, Katanga, Zaire
;
_chemical_formula_sum 'U2 Cu Si2 O18 H12'
_cell_length_a 7.052
_cell_length_b 9.267
_cell_length_c 6.655
_cell_angle_alpha 109.2
_cell_angle_beta 89.8
_cell_angle_gamma 110
_cell_volume 383.028
_exptl_crystal_density_diffrn      3.884
_symmetry_space_group_name_H-M 'P -1'
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
U   0.25890   0.02100   0.63970
Cu   0.50000   0.50000   0.00000
Si   0.77350   0.05260   0.85730
O1   0.35300   0.23500   0.69900
O2   0.83800   0.19300   0.41600
O3   0.58800   0.02400   0.69200
O4   0.93200   0.01800   0.69000
O5   0.86300   0.24800   0.02100
O6   0.72000   0.94000   0.00200
Wat7   0.46500   0.37400   0.19300
Wat8   0.23100   0.51300   0.05200
Wat9   0.20100   0.48200   0.49900
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
U 0.00898 0.02058 0.00532 0.01550 0.00395 0.01006
Cu 0.03462 0.02666 0.03508 0.01659 0.00935 0.02553
Si 0.01512 0.02295 0.00769 0.01713 0.00623 0.01109
O1 0.02082 0.03408 0.01991 0.02094 0.00478 0.03172
O2 0.01600 0.04589 0.02030 0.03535 0.00935 0.03378
O3 0.02147 0.04218 0.00512 0.03997 0.01372 0.02295
O4 0.01315 0.03645 0.00710 0.02828 0.00852 0.02012
O5 0.04382 0.02835 0.01596 0.03209 0.00852 0.01547
O6 0.01643 0.02970 0.00572 0.02447 0.00478 0.01032
Wat7 0.05434 0.02497 0.02838 0.00489 -0.00831 0.01367
Wat8 0.03900 0.04421 0.11313 0.04079 0.04281 0.07427
Wat9 0.05609 0.05838 0.06189 0.02556 0.01081 0.03198