data_[Mg1Zn1Ag1P2]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  Zn  1.6500  1.3500  0.8800
  Ag  1.9300  1.6000  1.0867
  P  2.1900  1.0000  0.5500
]
_symmetry_space_group_name_H-M [P3m1]
_cell_length_a [4.1433]
_cell_length_b [4.1433]
_cell_length_c [6.2538]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [120.0000]
_symmetry_Int_Tables_number [156]
_chemical_formula_structural [MgZnAgP2]
_chemical_formula_sum '[Mg1 Zn1 Ag1 P2]'
_cell_volume [92.9735]
_cell_formula_units_Z [1]
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
[
  Mg  Mg0  1  0.3333  0.6667  0.3464  1
  Zn  Zn1  1  0.6667  0.3333  0.6442  1
  Ag  Ag2  1  0.0000  0.0000  0.0089  1
  P  P3  1  0.3333  0.6667  0.7622  1
  P  P4  1  0.6667  0.3333  0.2383  1
]