data_[Li3Ca4Mg1]
loop_
 _atom_type_symbol
 _atom_type_electronegativity
 _atom_type_radius
 _atom_type_ionic_radius
[
  Li  0.9800  1.4500  0.9000
  Ca  1.0000  1.8000  1.1400
  Mg  1.3100  1.5000  0.8600
]
_symmetry_space_group_name_H-M [Pmm2]
_cell_length_a [3.9230]
_cell_length_b [5.2021]
_cell_length_c [12.5621]
_cell_angle_alpha [90.0000]
_cell_angle_beta [90.0000]
_cell_angle_gamma [90.0000]
_symmetry_Int_Tables_number [25]
_chemical_formula_structural [Li3Ca4Mg]
_chemical_formula_sum '[Li3 Ca4 Mg1]'
_cell_volume [256.3611]
_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
[
  Li  Li0  1  0.0000  0.0000  0.4325  1
  Li  Li1  1  0.0000  0.5000  0.5681  1
  Li  Li2  1  0.5000  0.0000  0.9321  1
  Ca  Ca3  1  0.0000  0.0000  0.1580  1
  Ca  Ca4  1  0.0000  0.5000  0.8420  1
  Ca  Ca5  1  0.5000  0.0000  0.6528  1
  Ca  Ca6  1  0.5000  0.5000  0.3463  1
  Mg  Mg7  1  0.5000  0.5000  0.0683  1
]