data_global
_chemical_name_mineral 'Finnemanite'
loop_
_publ_author_name
'Effenberger H'
'Pertlik F'
_journal_name_full 'Tschermaks Mineralogische und Petrographische Mitteilungen'
_journal_volume 26 
_journal_year 1979
_journal_page_first 95
_journal_page_last 107
_publ_section_title
;
 Die kristallstruktur des finnemanits, Pb5Cl(AsO3)3, mit einem
 vergleich zum strukturtyp des chlorapatits, Ca5Cl(PO4)3
;
_database_code_amcsd 0015673
_chemical_compound_source 'Langban, Varmland, Sweden'
_chemical_formula_sum 'Pb5 Cl As3 O9'
_cell_length_a 10.322
_cell_length_b 10.322
_cell_length_c 7.054
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 650.869
_exptl_crystal_density_diffrn      7.349
_symmetry_space_group_name_H-M 'P 63/m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x+y,-x,1/2-z'
  'x-y,x,1/2+z'
  'y,-x+y,-z'
  '-y,x-y,z'
  'x,y,1/2-z'
  '-x,-y,1/2+z'
  'x-y,x,-z'
  '-x+y,-x,z'
  '-y,x-y,1/2-z'
  'y,-x+y,1/2+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   0.33333   0.66667   0.98990 ?
Pb2   0.26460   0.03630   0.25000 ?
Cl   0.00000   0.00000   0.00000 ?
As   0.41390   0.40080   0.25000 ?
O1   0.61700   0.46600   0.25000   0.01773
O2   0.36700   0.27700   0.06100   0.02153
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Pb1 0.02875 0.02875 0.01001 0.01444 0.00000 0.00000
Pb2 0.00937 0.01304 0.01950 0.00519 0.00000 0.00000
Cl 0.01849 0.01849 0.00697 0.00925 0.00000 0.00000
As 0.00988 0.01279 0.01659 0.00519 0.00000 0.00000