The crystal structure described by CaMg6La is beta Cu3Ti-derived structured and crystallizes in the orthorhombic Amm2 space group. Ca(1) is bonded to two equivalent Mg(2); four Mg(1,1,1,1); four Mg(3,3); and two equivalent La(1) atoms to form CaLa2Mg10 cuboctahedra that share corners with four equivalent Mg(2)Ca2Mg10 cuboctahedra; corners with six equivalent Ca(1)La2Mg10 cuboctahedra; edges with two equivalent Mg(2)Ca2Mg10 cuboctahedra; edges with four equivalent La(1)Ca2Mg10 cuboctahedra; edges with eight Mg(3,3,3,3)Ca2La2Mg8 cuboctahedra; faces with two equivalent Ca(1)La2Mg10 cuboctahedra; faces with two equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent La(1)Ca2Mg10 cuboctahedra; faces with four Mg(3,3)Ca2La2Mg8 cuboctahedra; and faces with six equivalent Mg(4)La2Mg10 cuboctahedra. There are ten inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Ca(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent La(1) atoms. In the second Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Ca(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent La(1) atoms. In the third Mg site, Mg(2) is bonded to two equivalent Ca(1); two equivalent Mg(4); four Mg(1,1,1,1); and four Mg(3,3) atoms to form distorted MgCa2Mg10 cuboctahedra that share corners with four equivalent Ca(1)La2Mg10 cuboctahedra; corners with six equivalent Mg(2)Ca2Mg10 cuboctahedra; edges with two equivalent Ca(1)La2Mg10 cuboctahedra; edges with four equivalent Mg(4)La2Mg10 cuboctahedra; edges with eight Mg(3,3,3,3)Ca2La2Mg8 cuboctahedra; faces with two equivalent Ca(1)La2Mg10 cuboctahedra; faces with two equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Mg(4)La2Mg10 cuboctahedra; faces with four Mg(3,3)Ca2La2Mg8 cuboctahedra; and faces with six equivalent La(1)Ca2Mg10 cuboctahedra. In the fourth Mg site, Mg(3) is bonded to two equivalent Ca(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent La(1) atoms to form distorted MgCa2La2Mg8 cuboctahedra that share corners with four equivalent Mg(4)La2Mg10 cuboctahedra; corners with four equivalent La(1)Ca2Mg10 cuboctahedra; corners with ten Mg(3,3,3)Ca2La2Mg8 cuboctahedra; edges with two equivalent Mg(3)Ca2La2Mg8 cuboctahedra; edges with two equivalent Mg(4)La2Mg10 cuboctahedra; edges with two equivalent La(1)Ca2Mg10 cuboctahedra; edges with four equivalent Ca(1)La2Mg10 cuboctahedra; edges with four equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Ca(1)La2Mg10 cuboctahedra; faces with two equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Mg(4)La2Mg10 cuboctahedra; faces with two equivalent La(1)Ca2Mg10 cuboctahedra; and faces with four Mg(3,3)Ca2La2Mg8 cuboctahedra. In the fifth Mg site, Mg(3) is bonded to two equivalent Ca(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent La(1) atoms to form distorted MgCa2La2Mg8 cuboctahedra that share corners with four equivalent Mg(4)La2Mg10 cuboctahedra; corners with four equivalent La(1)Ca2Mg10 cuboctahedra; corners with ten Mg(3,3,3)Ca2La2Mg8 cuboctahedra; edges with two equivalent Mg(3)Ca2La2Mg8 cuboctahedra; edges with two equivalent Mg(4)La2Mg10 cuboctahedra; edges with two equivalent La(1)Ca2Mg10 cuboctahedra; edges with four equivalent Ca(1)La2Mg10 cuboctahedra; edges with four equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Ca(1)La2Mg10 cuboctahedra; faces with two equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Mg(4)La2Mg10 cuboctahedra; faces with two equivalent La(1)Ca2Mg10 cuboctahedra; and faces with four Mg(3,3)Ca2La2Mg8 cuboctahedra. In the sixth Mg site, Mg(4) is bonded to two equivalent Mg(2); four Mg(1,1); four Mg(3,3,3,3); and two equivalent La(1) atoms to form MgLa2Mg10 cuboctahedra that share corners with four equivalent La(1)Ca2Mg10 cuboctahedra; corners with six equivalent Mg(4)La2Mg10 cuboctahedra; corners with eight Mg(3,3,3,3)Ca2La2Mg8 cuboctahedra; edges with two equivalent La(1)Ca2Mg10 cuboctahedra; edges with four Mg(3,3,3,3)Ca2La2Mg8 cuboctahedra; edges with four equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Mg(4)La2Mg10 cuboctahedra; faces with two equivalent La(1)Ca2Mg10 cuboctahedra; faces with four Mg(3,3,3,3)Ca2La2Mg8 cuboctahedra; and faces with six equivalent Ca(1)La2Mg10 cuboctahedra. In the seventh Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Ca(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent La(1) atoms. In the eighth Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Ca(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent La(1) atoms. In the ninth Mg site, Mg(3) is bonded to two equivalent Ca(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent La(1) atoms to form distorted MgCa2La2Mg8 cuboctahedra that share corners with four equivalent Mg(4)La2Mg10 cuboctahedra; corners with four equivalent La(1)Ca2Mg10 cuboctahedra; corners with ten Mg(3,3,3)Ca2La2Mg8 cuboctahedra; edges with two equivalent Mg(3)Ca2La2Mg8 cuboctahedra; edges with two equivalent Mg(4)La2Mg10 cuboctahedra; edges with two equivalent La(1)Ca2Mg10 cuboctahedra; edges with four equivalent Ca(1)La2Mg10 cuboctahedra; edges with four equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Ca(1)La2Mg10 cuboctahedra; faces with two equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Mg(4)La2Mg10 cuboctahedra; faces with two equivalent La(1)Ca2Mg10 cuboctahedra; and faces with four Mg(3,3)Ca2La2Mg8 cuboctahedra. In the tenth Mg site, Mg(3) is bonded to two equivalent Ca(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent La(1) atoms to form distorted MgCa2La2Mg8 cuboctahedra that share corners with four equivalent Mg(4)La2Mg10 cuboctahedra; corners with four equivalent La(1)Ca2Mg10 cuboctahedra; corners with ten Mg(3,3,3)Ca2La2Mg8 cuboctahedra; edges with two equivalent Mg(3)Ca2La2Mg8 cuboctahedra; edges with two equivalent Mg(4)La2Mg10 cuboctahedra; edges with two equivalent La(1)Ca2Mg10 cuboctahedra; edges with four equivalent Ca(1)La2Mg10 cuboctahedra; edges with four equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Ca(1)La2Mg10 cuboctahedra; faces with two equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Mg(4)La2Mg10 cuboctahedra; faces with two equivalent La(1)Ca2Mg10 cuboctahedra; and faces with four Mg(3,3)Ca2La2Mg8 cuboctahedra. La(1) is bonded to two equivalent Ca(1); two equivalent Mg(4); four Mg(1,1); and four Mg(3,3,3,3) atoms to form LaCa2Mg10 cuboctahedra that share corners with four equivalent Mg(4)La2Mg10 cuboctahedra; corners with six equivalent La(1)Ca2Mg10 cuboctahedra; corners with eight Mg(3,3,3,3)Ca2La2Mg8 cuboctahedra; edges with two equivalent Mg(4)La2Mg10 cuboctahedra; edges with four equivalent Ca(1)La2Mg10 cuboctahedra; edges with four Mg(3,3,3,3)Ca2La2Mg8 cuboctahedra; faces with two equivalent Ca(1)La2Mg10 cuboctahedra; faces with two equivalent Mg(4)La2Mg10 cuboctahedra; faces with two equivalent La(1)Ca2Mg10 cuboctahedra; faces with four Mg(3,3,3,3)Ca2La2Mg8 cuboctahedra; and faces with six equivalent Mg(2)Ca2Mg10 cuboctahedra. is represented by the CIF card [CIF]
data_CaLaMg6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.364
_cell_length_b   6.842
_cell_length_c   6.842
_cell_angle_alpha   119.252
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   219.094
_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
  Ca  Ca0  1  0.000  0.842  0.158  1.0
  La  La1  1  0.500  0.658  0.342  1.0
  Mg  Mg2  1  1.000  0.837  0.670  1.0
  Mg  Mg3  1  0.000  0.330  0.163  1.0
  Mg  Mg4  1  0.000  0.334  0.666  1.0
  Mg  Mg5  1  0.500  0.667  0.833  1.0
  Mg  Mg6  1  0.500  0.167  0.333  1.0
  Mg  Mg7  1  0.500  0.164  0.836  1.0
[/CIF]
.
The crystal structure described by CaMg6La is beta Cu3Ti-derived structured and crystallizes in the orthorhombic Amm2 space group. Ca(1) is bonded to two equivalent Mg(2); four Mg(1,1,1,1); four Mg(3,3); and two equivalent La(1) atoms to form CaLa2Mg10 cuboctahedra that share corners with four equivalent Mg(2)Ca2Mg10 cuboctahedra; corners with six equivalent Ca(1)La2Mg10 cuboctahedra; edges with two equivalent Mg(2)Ca2Mg10 cuboctahedra; edges with four equivalent La(1)Ca2Mg10 cuboctahedra; edges with eight Mg(3,3,3,3)Ca2La2Mg8 cuboctahedra; faces with two equivalent Ca(1)La2Mg10 cuboctahedra; faces with two equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent La(1)Ca2Mg10 cuboctahedra; faces with four Mg(3,3)Ca2La2Mg8 cuboctahedra; and faces with six equivalent Mg(4)La2Mg10 cuboctahedra. There are ten inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Ca(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent La(1) atoms. In the second Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Ca(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent La(1) atoms. In the third Mg site, Mg(2) is bonded to two equivalent Ca(1); two equivalent Mg(4); four Mg(1,1,1,1); and four Mg(3,3) atoms to form distorted MgCa2Mg10 cuboctahedra that share corners with four equivalent Ca(1)La2Mg10 cuboctahedra; corners with six equivalent Mg(2)Ca2Mg10 cuboctahedra; edges with two equivalent Ca(1)La2Mg10 cuboctahedra; edges with four equivalent Mg(4)La2Mg10 cuboctahedra; edges with eight Mg(3,3,3,3)Ca2La2Mg8 cuboctahedra; faces with two equivalent Ca(1)La2Mg10 cuboctahedra; faces with two equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Mg(4)La2Mg10 cuboctahedra; faces with four Mg(3,3)Ca2La2Mg8 cuboctahedra; and faces with six equivalent La(1)Ca2Mg10 cuboctahedra. In the fourth Mg site, Mg(3) is bonded to two equivalent Ca(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent La(1) atoms to form distorted MgCa2La2Mg8 cuboctahedra that share corners with four equivalent Mg(4)La2Mg10 cuboctahedra; corners with four equivalent La(1)Ca2Mg10 cuboctahedra; corners with ten Mg(3,3,3)Ca2La2Mg8 cuboctahedra; edges with two equivalent Mg(3)Ca2La2Mg8 cuboctahedra; edges with two equivalent Mg(4)La2Mg10 cuboctahedra; edges with two equivalent La(1)Ca2Mg10 cuboctahedra; edges with four equivalent Ca(1)La2Mg10 cuboctahedra; edges with four equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Ca(1)La2Mg10 cuboctahedra; faces with two equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Mg(4)La2Mg10 cuboctahedra; faces with two equivalent La(1)Ca2Mg10 cuboctahedra; and faces with four Mg(3,3)Ca2La2Mg8 cuboctahedra. In the fifth Mg site, Mg(3) is bonded to two equivalent Ca(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent La(1) atoms to form distorted MgCa2La2Mg8 cuboctahedra that share corners with four equivalent Mg(4)La2Mg10 cuboctahedra; corners with four equivalent La(1)Ca2Mg10 cuboctahedra; corners with ten Mg(3,3,3)Ca2La2Mg8 cuboctahedra; edges with two equivalent Mg(3)Ca2La2Mg8 cuboctahedra; edges with two equivalent Mg(4)La2Mg10 cuboctahedra; edges with two equivalent La(1)Ca2Mg10 cuboctahedra; edges with four equivalent Ca(1)La2Mg10 cuboctahedra; edges with four equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Ca(1)La2Mg10 cuboctahedra; faces with two equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Mg(4)La2Mg10 cuboctahedra; faces with two equivalent La(1)Ca2Mg10 cuboctahedra; and faces with four Mg(3,3)Ca2La2Mg8 cuboctahedra. In the sixth Mg site, Mg(4) is bonded to two equivalent Mg(2); four Mg(1,1); four Mg(3,3,3,3); and two equivalent La(1) atoms to form MgLa2Mg10 cuboctahedra that share corners with four equivalent La(1)Ca2Mg10 cuboctahedra; corners with six equivalent Mg(4)La2Mg10 cuboctahedra; corners with eight Mg(3,3,3,3)Ca2La2Mg8 cuboctahedra; edges with two equivalent La(1)Ca2Mg10 cuboctahedra; edges with four Mg(3,3,3,3)Ca2La2Mg8 cuboctahedra; edges with four equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Mg(4)La2Mg10 cuboctahedra; faces with two equivalent La(1)Ca2Mg10 cuboctahedra; faces with four Mg(3,3,3,3)Ca2La2Mg8 cuboctahedra; and faces with six equivalent Ca(1)La2Mg10 cuboctahedra. In the seventh Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Ca(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent La(1) atoms. In the eighth Mg site, Mg(1) is bonded in a 12-coordinate geometry to two equivalent Ca(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent La(1) atoms. In the ninth Mg site, Mg(3) is bonded to two equivalent Ca(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent La(1) atoms to form distorted MgCa2La2Mg8 cuboctahedra that share corners with four equivalent Mg(4)La2Mg10 cuboctahedra; corners with four equivalent La(1)Ca2Mg10 cuboctahedra; corners with ten Mg(3,3,3)Ca2La2Mg8 cuboctahedra; edges with two equivalent Mg(3)Ca2La2Mg8 cuboctahedra; edges with two equivalent Mg(4)La2Mg10 cuboctahedra; edges with two equivalent La(1)Ca2Mg10 cuboctahedra; edges with four equivalent Ca(1)La2Mg10 cuboctahedra; edges with four equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Ca(1)La2Mg10 cuboctahedra; faces with two equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Mg(4)La2Mg10 cuboctahedra; faces with two equivalent La(1)Ca2Mg10 cuboctahedra; and faces with four Mg(3,3)Ca2La2Mg8 cuboctahedra. In the tenth Mg site, Mg(3) is bonded to two equivalent Ca(1), two equivalent Mg(1), two equivalent Mg(2), two equivalent Mg(3), two equivalent Mg(4), and two equivalent La(1) atoms to form distorted MgCa2La2Mg8 cuboctahedra that share corners with four equivalent Mg(4)La2Mg10 cuboctahedra; corners with four equivalent La(1)Ca2Mg10 cuboctahedra; corners with ten Mg(3,3,3)Ca2La2Mg8 cuboctahedra; edges with two equivalent Mg(3)Ca2La2Mg8 cuboctahedra; edges with two equivalent Mg(4)La2Mg10 cuboctahedra; edges with two equivalent La(1)Ca2Mg10 cuboctahedra; edges with four equivalent Ca(1)La2Mg10 cuboctahedra; edges with four equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Ca(1)La2Mg10 cuboctahedra; faces with two equivalent Mg(2)Ca2Mg10 cuboctahedra; faces with two equivalent Mg(4)La2Mg10 cuboctahedra; faces with two equivalent La(1)Ca2Mg10 cuboctahedra; and faces with four Mg(3,3)Ca2La2Mg8 cuboctahedra. La(1) is bonded to two equivalent Ca(1); two equivalent Mg(4); four Mg(1,1); and four Mg(3,3,3,3) atoms to form LaCa2Mg10 cuboctahedra that share corners with four equivalent Mg(4)La2Mg10 cuboctahedra; corners with six equivalent La(1)Ca2Mg10 cuboctahedra; corners with eight Mg(3,3,3,3)Ca2La2Mg8 cuboctahedra; edges with two equivalent Mg(4)La2Mg10 cuboctahedra; edges with four equivalent Ca(1)La2Mg10 cuboctahedra; edges with four Mg(3,3,3,3)Ca2La2Mg8 cuboctahedra; faces with two equivalent Ca(1)La2Mg10 cuboctahedra; faces with two equivalent Mg(4)La2Mg10 cuboctahedra; faces with two equivalent La(1)Ca2Mg10 cuboctahedra; faces with four Mg(3,3,3,3)Ca2La2Mg8 cuboctahedra; and faces with six equivalent Mg(2)Ca2Mg10 cuboctahedra. is represented by the CIF card [CIF]
data_CaLaMg6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.364
_cell_length_b   6.842
_cell_length_c   6.842
_cell_angle_alpha   119.252
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   219.094
_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
  Ca  Ca0  1  0.000  0.842  0.158  1.0
  La  La1  1  0.500  0.658  0.342  1.0
  Mg  Mg2  1  1.000  0.837  0.670  1.0
  Mg  Mg3  1  0.000  0.330  0.163  1.0
  Mg  Mg4  1  0.000  0.334  0.666  1.0
  Mg  Mg5  1  0.500  0.667  0.833  1.0
  Mg  Mg6  1  0.500  0.167  0.333  1.0
  Mg  Mg7  1  0.500  0.164  0.836  1.0
[/CIF]
.