data_9009247
_chemical_name 'Bahianite'
loop_
_publ_author_name
'Moore P B'
'Araki T'
_journal_name_full "Neues Jahrbuch fur Mineralogie, Abhandlungen"
_journal_volume 126
_journal_year 1976
_journal_page_first 113
_journal_page_last 125
_publ_section_title
;
 Bahianite, Al5Sb3O14(O,OH)2, a novel hexagonal close-packed oxide structure
 Locality: Serra de Mangabeira, Bahia, Brazil
;
_chemical_formula_sum 'Sb2.9 Fe.34 Al4.76 O16'
_cell_length_a 9.406
_cell_length_b 11.541
_cell_length_c 4.410
_cell_angle_alpha 90
_cell_angle_beta 90.94
_cell_angle_gamma 90
_cell_volume 478.662
_symmetry_space_group_name_H-M 'C 1 2/m 1'
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,z'
  '1/2+x,1/2-y,z'
  '-x,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
Sb1   0.00000   0.00000   0.00000   0.90000
Fe1   0.00000   0.00000   0.00000   0.10000
Sb2   0.00000   0.26881   0.00000   1.00000
Al1   0.00000   0.50000   0.50000   1.00000
Al2   0.23644   0.13003   0.49087   0.94000
Fe2   0.23644   0.13003   0.49087   0.06000
O1   0.15710   0.00000   0.28960   1.00000
O2   0.32910   0.00000  -0.29050   1.00000
O3   0.08810   0.13080  -0.21690   1.00000
O4   0.16400   0.25570   0.27980   1.00000
O5   0.40780   0.11440   0.24870   1.00000