data_9001236
_chemical_name 'Coronadite'
loop_
_publ_author_name
'Post J E'
'Bish D L'
_journal_name_full "American Mineralogist"
_journal_volume 74
_journal_year 1989
_journal_page_first 913
_journal_page_last 917
_publ_section_title
;
 Rietveld refinement of the coronadite structure
 sample from Broken Hill
;
_chemical_formula_sum 'Mn2 Pb.35 O4'
_cell_length_a 9.913
_cell_length_b 2.8652
_cell_length_c 9.843
_cell_angle_alpha 90
_cell_angle_beta 90.20
_cell_angle_gamma 90
_cell_volume 279.566
_symmetry_space_group_name_H-M 'I 1 2/m 1'
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  'x,-y,z'
  '1/2+x,1/2-y,1/2+z'
  '-x,y,-z'
  '1/2-x,1/2+y,1/2-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,1/2-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Mn1   0.83700   0.00000   0.32700   1.00000
Mn2   0.33800   0.00000   0.13800   1.00000
Pb   0.00000   0.21400   0.00000   0.35000
O1   0.63900   0.00000   0.31100   1.00000
O2   0.63600   0.00000   0.04200   1.00000
O3   0.28600   0.00000   0.33600   1.00000
O4   0.04500   0.00000   0.32300   1.00000