data_global
_chemical_name_mineral 'Thalcusite'
loop_
_publ_author_name
'Berger R'
_journal_name_full 'Journal of the Less-Common Metals'
_journal_volume 147 
_journal_year 1989
_journal_page_first 141
_journal_page_last 148
_publ_section_title
;
 Synthesis and characterization of the layered metal TlCu2S2
;
_database_code_amcsd 0014164
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Tl Cu2 S2'
_cell_length_a 3.7771
_cell_length_b 3.7771
_cell_length_c 13.3791
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 190.873
_exptl_crystal_density_diffrn      6.883
_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
Tl   0.00000   0.00000   0.00000
Cu   0.00000   0.50000   0.25000
S   0.00000   0.00000   0.36000