data_global
_chemical_name_mineral 'Challacolloite'
loop_
_publ_author_name
'Schluter J'
'Pohl D'
'Britvin S'
_journal_name_full 'Neues Jahrbuch fur Mineralogie, Abhandlungen'
_journal_volume 182 
_journal_year 2005
_journal_page_first 95
_journal_page_last 101
_publ_section_title
;
 The new mineral challacolloite, KPb2Cl5, the natural occurrence of a
 technically known laser material
;
_database_code_amcsd 0019134
_chemical_compound_source 'Challacollo silver mine, Iquique, Atacama desert, Chile'
_chemical_formula_sum 'K Pb2 Cl5'
_cell_length_a 8.864
_cell_length_b 7.932
_cell_length_c 12.491
_cell_angle_alpha 90
_cell_angle_beta 90.153
_cell_angle_gamma 90
_cell_volume 878.230
_exptl_crystal_density_diffrn      4.771
_symmetry_space_group_name_H-M 'P 1 21/c 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,1/2+z'
  '-x,1/2+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
K   0.01510   0.04290   0.82950   0.03331
Pb1   0.50540   0.98630   0.17360   0.03331
Pb2   0.24490   0.93530   0.49370   0.03331
Cl1   0.04130   0.30820   0.07150   0.03331
Cl2   0.46600   0.34550   0.10110   0.03331
Cl3   0.25550   0.14710   0.31100   0.03331
Cl4   0.27280   0.53060   0.48730   0.03331
Cl5   0.21750   0.69410   0.21950   0.03331