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#$Date: 2008-01-26 15:05:32 +0200 (Sat, 26 Jan 2008) $
#$Revision: 19 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/9009420.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_9009420
_chemical_name 'Stibiocolumbite'
loop_
_publ_author_name
'Zubkova N V'
'Pushcharovskii D Y'
'Giester G'
'Smolin A S'
'Tillmanns E'
'Brandstatter F'
'Hammer V'
'Peretyazhko I S'
'Sapozhnikov A N'
'Kashaev A A'
_journal_name_full "Neues Jahrbuch fur Mineralogie, Monatshefte"
_journal_volume 2002
_journal_year 2002
_journal_page_first 145
_journal_page_last 159
_publ_section_title
;
 Bismutocolumbite, Bi(Nb.79Ta.21)O4, stibiocolumbite, Sb(Nb.67Ta.33)O4 and their
 structural relation to the other ABO4 minerals with
 stibiotantalite (SbTaO4) structure
 Locality: Mesa Grande, California, USA
;
_chemical_formula_sum 'Sb (Nb.33 Ta.67) O4'
_cell_length_a 5.557
_cell_length_b 4.932
_cell_length_c 11.808
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 323.623
_symmetry_space_group_name_H-M 'P n a 21'
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '1/2+x,1/2-y,z'
  '1/2-x,1/2+y,1/2+z'
  '-x,-y,1/2+z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_Uiso_or_equiv
Sb   0.52369   0.04914   0.24729   1.00000   0.00930
Nb   0.88867  -0.00667  -0.00157   0.33000   0.00480
Ta   0.88867  -0.00667  -0.00157   0.67000   0.00480
O1   0.34620   0.33130   0.15760   1.00000   0.00840
O2   0.82420   0.83520   0.84770   1.00000   0.00810
O3   0.08450   0.71190   0.05630   1.00000   0.01060
O4   0.12900   0.22700  -0.04830   1.00000   0.01170