data_global
_chemical_name_mineral 'Montroseite'
loop_
_publ_author_name
'Evans H T'
'Block S'
_journal_name_full 'American Mineralogist'
_journal_volume 38
_journal_year 1953
_journal_page_first 1242
_journal_page_last 1250
_publ_section_title
;
 The crystal structure of montroseite, a vanadium member of the diaspore group
;
_database_code_amcsd 62
_chemical_formula_sum '(Fe.125 V.875) (O2 H)'
_cell_length_a 4.54
_cell_length_b 9.97
_cell_length_c 3.03
_cell_angle_alpha 90.0
_cell_angle_beta 90.0
_cell_angle_gamma 90.0
_cell_volume 137.149
_exptl_crystal_density_diffrn  4.095
_symmetry_space_group_name_H-M 'P b n m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,y,1/2-z'
  '-x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,1/2+y,1/2-z'
  '1/2-x,1/2+y,z'
  '1/2+x,1/2-y,-z'
  '-x,-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
Fe   -0.051  0.145  0.25  0.125  0.00507
V   -0.051  0.145  0.25  0.875  0.00507
O-H1   0.297  -0.197  0.25  1.0  0.00507
O2   -0.197  -0.051  0.25  1.0  0.00507