data_global
_chemical_name_mineral 'Moschellandsbergite'
loop_
_publ_author_name
'Fairhurst C W'
'Cohen J B'
_journal_name_full 'Acta Crystallographica, Section B'
_journal_volume 28 
_journal_year 1972
_journal_page_first 371
_journal_page_last 378
_publ_section_title
;
 The crystal structure of two compounds found in dental amalgam: Ag2Hg3 and
 Ag3Sn
;
_database_code_amcsd 0009425
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Ag5 Hg7.55'
_cell_length_a 10.0506
_cell_length_b 10.0506
_cell_length_c 10.0506
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 1015.257
_exptl_crystal_density_diffrn     13.437
_symmetry_space_group_name_H-M 'I 2 3'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  '-z,-x,y'
  '1/2-z,1/2-x,1/2+y'
  '-z,x,-y'
  '1/2-z,1/2+x,1/2-y'
  'z,-x,-y'
  '1/2+z,1/2-x,1/2-y'
  'z,x,y'
  '1/2+z,1/2+x,1/2+y'
  'y,-z,-x'
  '1/2+y,1/2-z,1/2-x'
  '-y,-z,x'
  '1/2-y,1/2-z,1/2+x'
  '-y,z,-x'
  '1/2-y,1/2+z,1/2-x'
  'y,z,x'
  '1/2+y,1/2+z,1/2+x'
  '-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
Ag1   0.32850   0.32850   0.32850   1.00000
Ag2   0.35500   0.00000   0.00000   1.00000
Hg1   0.11510   0.11510   0.11510   1.00000
Hg2   0.29570   0.33590   0.02910   0.92500
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
Ag1 0.00461 0.00461 0.00461 0.00154 0.00154 0.00154
Ag2 0.01177 0.01638 0.00870 0.00000 0.00000 0.00154
Hg1 0.01945 0.01945 0.01945 0.00307 0.00307 0.00307
Hg2 0.00819 0.02559 0.01177 -0.00205 -0.00256 -0.00563