The material described by CaMg(CO3)2 is Calcite-derived structured and crystallizes in the trigonal R-3 space group. Ca(1) is bonded to six equivalent O(1) atoms to form CaO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 61°. Mg(1) is bonded to six equivalent O(1) atoms to form MgO6 octahedra that share corners with six equivalent Ca(1)O6 octahedra. The corner-sharing octahedral tilt angles are 61°. C(1) is bonded in a trigonal planar geometry to three equivalent O(1) atoms. O(1) is bonded in a distorted trigonal planar geometry to one Ca(1), one Mg(1), and one C(1) atom. is represented by the CIF card [CIF]
data_CaMg(CO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.085
_cell_length_b   6.085
_cell_length_c   6.085
_cell_angle_alpha   47.196
_cell_angle_beta   47.196
_cell_angle_gamma   47.196
_symmetry_Int_Tables_number   1
_cell_volume   110.936
_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  0.500  0.500  0.500  1.0
  C  C2  1  0.243  0.243  0.243  1.0
  C  C3  1  0.757  0.757  0.757  1.0
  O  O4  1  0.277  0.492  0.963  1.0
  O  O5  1  0.963  0.277  0.492  1.0
  O  O6  1  0.492  0.963  0.277  1.0
  O  O7  1  0.723  0.508  0.037  1.0
  O  O8  1  0.037  0.723  0.508  1.0
  O  O9  1  0.508  0.037  0.723  1.0
[/CIF]
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The material described by CaMg(CO3)2 is Calcite-derived structured and crystallizes in the trigonal R-3 space group. Ca(1) is bonded to six equivalent O(1) atoms to form CaO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles are 61°. Mg(1) is bonded to six equivalent O(1) atoms to form MgO6 octahedra that share corners with six equivalent Ca(1)O6 octahedra. The corner-sharing octahedral tilt angles are 61°. C(1) is bonded in a trigonal planar geometry to three equivalent O(1) atoms. O(1) is bonded in a distorted trigonal planar geometry to one Ca(1), one Mg(1), and one C(1) atom. is represented by the CIF card [CIF]
data_CaMg(CO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.085
_cell_length_b   6.085
_cell_length_c   6.085
_cell_angle_alpha   47.196
_cell_angle_beta   47.196
_cell_angle_gamma   47.196
_symmetry_Int_Tables_number   1
_cell_volume   110.936
_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  0.500  0.500  0.500  1.0
  C  C2  1  0.243  0.243  0.243  1.0
  C  C3  1  0.757  0.757  0.757  1.0
  O  O4  1  0.277  0.492  0.963  1.0
  O  O5  1  0.963  0.277  0.492  1.0
  O  O6  1  0.492  0.963  0.277  1.0
  O  O7  1  0.723  0.508  0.037  1.0
  O  O8  1  0.037  0.723  0.508  1.0
  O  O9  1  0.508  0.037  0.723  1.0
[/CIF]
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