data_K2MgTc
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.91
_cell_length_b   6.09
_cell_length_c   5.85
_cell_angle_alpha   90.0
_cell_angle_beta   95.33
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2MgTc
_chemical_formula_sum   'K2 Mg1 Tc1'
_cell_volume   103.27
_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
  K  K0  1  0.01  0.05  0.52  1.0
  K  K1  1  0.36  0.05  0.31  1.0
  Mg  Mg2  1  0.0  0.0  0.0  1.0
  Tc  Tc3  1  0.18  0.0  0.91  1.0

data_K2MgTc
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.91
_cell_length_b   5.85
_cell_length_c   6.09
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   95.33
_symmetry_Int_Tables_number   1
_chemical_formula_structural   K2MgTc
_chemical_formula_sum   'K2 Mg1 Tc1'
_cell_volume   103.27
_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
  K  K0  1  0.64  0.69  0.95  1.0
  K  K1  1  0.99  0.48  0.95  1.0
  Mg  Mg2  1  0.0  0.0  0.0  1.0
  Tc  Tc3  1  0.82  0.09  0.0  1.0

K K Mg Tc
K K Mg Tc 0 1 o o o 2 3 o o - 