data_global
_chemical_name_mineral 'Cerchiaraite-(Mn)'
loop_
_publ_author_name
'Basso R'
'Lucchetti G'
'Zefiro L'
'Palenzona A'
_journal_name_full 'Neues Jahrbuch fur Mineralogie, Monatshefte'
_journal_volume 2000 
_journal_year 2000
_journal_page_first 373
_journal_page_last 384
_publ_section_title
;
 Cerchiaraite, a new natural Ba-Mn-mixed-anion silicate chloride from
 the Cerchiara mine, northern Apennines, Italy
;
_database_code_amcsd 0014905
_chemical_compound_source 'Cerchiara mine, Va di Vara, northern Apennines, Italy'
_chemical_formula_sum 'Ba4 Mn4 Si6 Cl O25'
_cell_length_a 14.215
_cell_length_b 14.215
_cell_length_c 6.126
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1237.858
_exptl_crystal_density_diffrn      3.684
_symmetry_space_group_name_H-M 'I 4/m m m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  '-y,-x,z'
  '1/2-y,1/2-x,1/2+z'
  'y,x,-z'
  '1/2+y,1/2+x,1/2-z'
  'y,-x,-z'
  '1/2+y,1/2-x,1/2-z'
  '-y,x,z'
  '1/2-y,1/2+x,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'
  '-x,-y,z'
  '1/2-x,1/2-y,1/2+z'
  'y,x,z'
  '1/2+y,1/2+x,1/2+z'
  '-y,-x,-z'
  '1/2-y,1/2-x,1/2-z'
  '-y,x,-z'
  '1/2-y,1/2+x,1/2-z'
  'y,-x,z'
  '1/2+y,1/2-x,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
_atom_site_U_iso_or_equiv
Ba   0.21900   0.00000   0.00000   1.00000   0.01596
Mn   0.25000   0.25000   0.25000   1.00000   0.01102
Si1   0.38810   0.38810   0.00000   1.00000   0.00836
Si2   0.11300   0.43100   0.00000   0.25000   0.01520
Cl   0.00000   0.00000   0.00000   1.00000   0.01760
O1   0.34540   0.34540   0.22360   1.00000   0.01343
O2   0.17310   0.31060   0.00000   1.00000   0.04015
O3   0.36930   0.50000   0.00000   1.00000   0.01976
O4   0.40300   0.00000   0.00000   0.25000   0.02723
O5   0.00000   0.36400   0.30700   0.50000   0.03863