data_[Mn6Si2Ag8]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mn  1.5500  1.4000  0.6483
  Si  1.9000  1.1000  0.5400
  Ag  1.9300  1.6000  1.0867
]
_symmetry_space_group_name_H-M [Immm]
_cell_length_a [2.8690]
_cell_length_b [7.9978]
_cell_length_c [11.7928]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [71]
_chemical_formula_structural [Mn3SiAg4]
_chemical_formula_sum '[Mn6 Si2 Ag8]'
_cell_volume [270.5931]
_cell_formula_units_Z [2]
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
[
  Mn  Mn0  4  0.0000  0.5000  0.3314  1
  Mn  Mn1  2  0.0000  0.0000  0.5000  1
  Si  Si2  2  0.0000  0.0000  0.0000  1
  Ag  Ag3  8  0.0000  0.3003  0.1438  1
]