#------------------------------------------------------------------------------
#$Date: 2009-11-18 16:56:34 +0200 (Wed, 18 Nov 2009) $
#$Revision: 858 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/9000069.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_9000069
loop_
_publ_author_name
'Donaldson D M'
'Barnes W H'
_publ_section_title
;
 The structures of the minerals of the descloizite and adelite groups: III-
 brackebuschite
;
_journal_name_full               'American Mineralogist'
_journal_page_first              597
_journal_page_last               613
_journal_volume                  40
_journal_year                    1955
_chemical_formula_sum            'Mn O8 Pb2 V2'
_[local]_cod_chemical_formula_sum_orig 'Pb2 V2 Mn O8'
_chemical_name_mineral           Brackebuschite
_symmetry_space_group_name_H-M   'B 1 21/m 1'
_cell_angle_alpha                90
_cell_angle_beta                 93.75
_cell_angle_gamma                90
_cell_length_a                   7.681
_cell_length_b                   6.155
_cell_length_c                   16.524
_cell_volume                     779.525
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
1/2+x,y,1/2+z
x,1/2-y,z
1/2+x,1/2-y,1/2+z
-x,1/2+y,-z
1/2-x,1/2+y,1/2-z
-x,-y,-z
1/2-x,-y,1/2-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Pb1 0.11490 0.25000 0.37450 0.02406
Pb2 0.62330 0.25000 0.29890 0.02406
V1 0.64620 0.25000 0.08650 0.00633
V2 0.12330 0.25000 0.16440 0.00633
Mn 0.00000 0.00000 0.00000 0.01900
O1 0.11400 0.02300 0.10400 ?
O2 0.94100 0.25000 0.23000 ?
O3 0.29900 0.25000 0.24700 ?
O4 0.63200 0.02300 0.14500 ?
O5 0.45500 0.25000 0.01700 ?
O6 0.84600 0.25000 0.02400 ?