data_9002427
_chemical_name '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
;
_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
_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
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