data_[Mg6P4]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Mg  1.3100  1.5000  0.8600
  P  2.1900  1.0000  0.5500
]
_symmetry_space_group_name_H-M [P2_1/m]
_cell_length_a [19.3250]
_cell_length_b [6.2030]
_cell_length_c [19.3250]
_cell_angle_alpha [90.0000]
_cell_angle_beta [120.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [11]
_chemical_formula_structural [Mg3P2]
_chemical_formula_sum '[Mg6 P4]'
_cell_volume [2006.2014]
_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
[
  Mg  Mg0  4  0.4750  0.5028  0.9164  1
  Mg  Mg1  2  0.3801  0.7500  0.7421  1
  P  P2  4  0.4655  0.0771  0.7860  1
]