data_global
_chemical_name_mineral 'Brackebuschite'
loop_
_publ_author_name
'Foley J A'
'Hughes J M'
'Lange D'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 35 
_journal_year 1997
_journal_page_first 1027
_journal_page_last 1033
_publ_section_title
;
 The atomic arrangement of brackebuschite, redefined as Pb2(Mn,Fe)(VO4)2(OH),
 and comments on Mn octahedra
;
_database_code_amcsd 0005530
_chemical_formula_sum 'Pb2 Mn V2 O9 H'
_cell_length_a 7.650
_cell_length_b 6.135
_cell_length_c 8.863
_cell_angle_alpha 90
_cell_angle_beta 111.76
_cell_angle_gamma 90
_cell_volume 386.325
_exptl_crystal_density_diffrn      6.157
_symmetry_space_group_name_H-M 'P 1 21/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,z'
  '-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_U_iso_or_equiv
Pb1   0.32780  -0.25000   0.40200   0.02546
Pb2  -0.26430  -0.25000   0.25140   0.02102
Mn   0.00000   0.00000   0.00000   0.00887
V1   0.55560   0.75000   0.82600   0.01267
V2   0.95800   0.75000   0.66150   0.00633
O1   0.49000   0.97800   0.70100   0.01900
O2   0.45200   0.75000   0.95500   0.03926
O3   0.79800   0.75000   0.93700   0.01267
O4   0.72900   0.75000   0.54200   0.04686
O5  -0.01000   0.00900   0.22000   0.02153
O6   0.07400   0.75000   0.53600   0.01900
O-H7   0.17500   0.75000   0.07900   0.02786