data_global
_chemical_name_mineral 'Krennerite'
loop_
_publ_author_name
'Tunell G'
'Murata K J'
_journal_name_full 'American Mineralogist'
_journal_volume 35
_journal_year 1950
_journal_page_first 959
_journal_page_last 984
_publ_section_title
;
 The atomic arrangement and chemical composition of krennerite
;
_database_code_amcsd 52
_chemical_formula_sum '(Au.8 Ag.2) Te2'
_cell_length_a 16.54
_cell_length_b 8.82
_cell_length_c 4.46
_cell_angle_alpha 90.0
_cell_angle_beta 90.0
_cell_angle_gamma 90.0
_cell_volume 650.637
_exptl_crystal_density_diffrn  8.868
_symmetry_space_group_name_H-M 'P m a 2'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,-y,z'
  '1/2-x,y,z'
  '-x,-y,z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Au1   0.0  0.0  0.0  0.8
Au2   0.25  0.319  0.014  0.8
Au3   0.124  0.666  0.5  0.8
Ag1   0.0  0.0  0.0  0.2
Ag2   0.25  0.319  0.014  0.2
Ag3   0.124  0.666  0.5  0.2
Te1   0.25  0.018  0.042  1.0
Te2   0.25  0.617  0.042  1.0
Te3   0.003  0.699  0.042  1.0
Te4   0.132  0.364  0.5  1.0
Te5   0.119  0.964  0.5  1.0