data_global
_chemical_name_mineral 'Namibite'
loop_
_publ_author_name
'Kolitsch U'
'Giester G'
_journal_name_full 'American Mineralogist'
_journal_volume 85 
_journal_year 2000
_journal_page_first 1298
_journal_page_last 1301
_publ_section_title
;
 The crystal structure of namibite, Cu(BiO)2VO4(OH), and a revision
 of its symmetry
;
_database_code_amcsd 0002512
_chemical_formula_sum 'Bi2 Cu V O7 H'
_cell_length_a 6.210
_cell_length_b 7.398
_cell_length_c 7.471
_cell_angle_alpha 90.10
_cell_angle_beta 108.73
_cell_angle_gamma 107.47
_cell_volume 308.224
_exptl_crystal_density_diffrn      6.955
_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
Bi1   0.50921   0.12785   0.29598
Bi2   0.47248  -0.37572   0.28136
Cu1   0.00000   0.50000   0.50000
Cu2   0.00000   0.00000   0.50000
V   0.09600   0.27640   0.92440
O1   0.21530   0.48960   0.85880
O2   0.21050   0.12500   0.84890
O3  -0.21660   0.20100   0.82880
O4   0.20930   0.30430   0.17420
O5   0.66470   0.41080   0.48340
O-H6   0.95680   0.23690   0.41090
O7   0.66120  -0.08150   0.48420
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
Bi1 0.01223 0.00966 0.00969 0.00344 0.00483 0.00122
Bi2 0.01125 0.01026 0.01165 0.00216 0.00591 0.00028
Cu1 0.00450 0.00470 0.01590 -0.00040 0.00530 -0.00040
Cu2 0.00450 0.00610 0.01540 0.00120 0.00410 0.00260
V 0.01030 0.01200 0.01040 0.00290 0.00200 -0.00050
O1 0.02100 0.01800 0.02400 0.00400 0.00700 0.00500
O2 0.02400 0.02000 0.01800 0.01100 0.00600 -0.00100
O3 0.01400 0.01600 0.01400 0.00500 0.00200 0.00200
O4 0.01100 0.01000 0.01300 0.00200 0.00200 0.00000
O5 0.00100 0.01300 0.00900 -0.00010 0.00080 -0.00170
O-H6 0.01100 0.00600 0.02300 0.00160 0.00600 0.00400
O7 0.00600 0.01100 0.00700 -0.00010 0.00150 0.00280