The compound described by CaMg3O4 is Caswellsilverite-like structured and crystallizes in the cubic Pm-3m space group. Ca(1) is bonded to six O(1,1,1) atoms to form CaO6 octahedra that share corners with six equivalent Ca(1)O6 octahedra and edges with twelve equivalent Mg(1)O6 octahedra. The corner-sharing octahedra are not tilted. Mg(1) is bonded to two equivalent O(2) and four O(1,1) atoms to form MgO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra, edges with four equivalent Ca(1)O6 octahedra, and edges with eight equivalent Mg(1)O6 octahedra. The corner-sharing octahedra are not tilted. There are four inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Ca(1) and four equivalent Mg(1) atoms to form OCa2Mg4 octahedra that share corners with six equivalent O(1)Ca2Mg4 octahedra; edges with four equivalent O(2)Mg6 octahedra; and edges with eight O(1,1)Ca2Mg4 octahedra. The corner-sharing octahedra are not tilted. In the second O site, O(2) is bonded to six equivalent Mg(1) atoms to form OMg6 octahedra that share corners with six equivalent O(2)Mg6 octahedra and edges with twelve O(1,1,1)Ca2Mg4 octahedra. The corner-sharing octahedra are not tilted. In the third O site, O(1) is bonded to two equivalent Ca(1) and four equivalent Mg(1) atoms to form OCa2Mg4 octahedra that share corners with six equivalent O(1)Ca2Mg4 octahedra; edges with four equivalent O(2)Mg6 octahedra; and edges with eight O(1,1)Ca2Mg4 octahedra. The corner-sharing octahedra are not tilted. In the fourth O site, O(1) is bonded to two equivalent Ca(1) and four equivalent Mg(1) atoms to form OCa2Mg4 octahedra that share corners with six equivalent O(1)Ca2Mg4 octahedra; edges with four equivalent O(2)Mg6 octahedra; and edges with eight O(1,1)Ca2Mg4 octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF file [CIF]
data_CaMg3O4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.446
_cell_length_b   4.446
_cell_length_c   4.446
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   87.885
_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  0.000  0.000  1.0
  Mg  Mg1  1  0.000  0.500  0.500  1.0
  Mg  Mg2  1  0.500  0.000  0.500  1.0
  Mg  Mg3  1  0.500  0.500  0.000  1.0
  O  O4  1  0.500  0.000  0.000  1.0
  O  O5  1  0.500  0.500  0.500  1.0
  O  O6  1  0.000  0.000  0.500  1.0
  O  O7  1  0.000  0.500  0.000  1.0
[/CIF]
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The compound described by CaMg3O4 is Caswellsilverite-like structured and crystallizes in the cubic Pm-3m space group. Ca(1) is bonded to six O(1,1,1) atoms to form CaO6 octahedra that share corners with six equivalent Ca(1)O6 octahedra and edges with twelve equivalent Mg(1)O6 octahedra. The corner-sharing octahedra are not tilted. Mg(1) is bonded to two equivalent O(2) and four O(1,1) atoms to form MgO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra, edges with four equivalent Ca(1)O6 octahedra, and edges with eight equivalent Mg(1)O6 octahedra. The corner-sharing octahedra are not tilted. There are four inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Ca(1) and four equivalent Mg(1) atoms to form OCa2Mg4 octahedra that share corners with six equivalent O(1)Ca2Mg4 octahedra; edges with four equivalent O(2)Mg6 octahedra; and edges with eight O(1,1)Ca2Mg4 octahedra. The corner-sharing octahedra are not tilted. In the second O site, O(2) is bonded to six equivalent Mg(1) atoms to form OMg6 octahedra that share corners with six equivalent O(2)Mg6 octahedra and edges with twelve O(1,1,1)Ca2Mg4 octahedra. The corner-sharing octahedra are not tilted. In the third O site, O(1) is bonded to two equivalent Ca(1) and four equivalent Mg(1) atoms to form OCa2Mg4 octahedra that share corners with six equivalent O(1)Ca2Mg4 octahedra; edges with four equivalent O(2)Mg6 octahedra; and edges with eight O(1,1)Ca2Mg4 octahedra. The corner-sharing octahedra are not tilted. In the fourth O site, O(1) is bonded to two equivalent Ca(1) and four equivalent Mg(1) atoms to form OCa2Mg4 octahedra that share corners with six equivalent O(1)Ca2Mg4 octahedra; edges with four equivalent O(2)Mg6 octahedra; and edges with eight O(1,1)Ca2Mg4 octahedra. The corner-sharing octahedra are not tilted. is represented by the CIF file [CIF]
data_CaMg3O4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.446
_cell_length_b   4.446
_cell_length_c   4.446
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   87.885
_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  0.000  0.000  1.0
  Mg  Mg1  1  0.000  0.500  0.500  1.0
  Mg  Mg2  1  0.500  0.000  0.500  1.0
  Mg  Mg3  1  0.500  0.500  0.000  1.0
  O  O4  1  0.500  0.000  0.000  1.0
  O  O5  1  0.500  0.500  0.500  1.0
  O  O6  1  0.000  0.000  0.500  1.0
  O  O7  1  0.000  0.500  0.000  1.0
[/CIF]
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