The crystal structure described by CaWO4 crystallizes in the orthorhombic Cmce space group. Ca(1) is bonded in a 11-coordinate geometry to two equivalent O(3), two equivalent O(4), three equivalent O(1), and four equivalent O(2) atoms. W(1) is bonded in a 6-coordinate geometry to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Ca(1) and two equivalent W(1) atoms to form a mixture of distorted edge and corner-sharing OCa3W2 trigonal bipyramids. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to four equivalent Ca(1) and one W(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Ca(1) and two equivalent W(1) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Ca(1) and one W(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_CaWO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.791
_cell_length_b   7.791
_cell_length_c   5.362
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.190
_symmetry_Int_Tables_number   1
_cell_volume   281.350
_cell_formula_units_Z   4
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  0.588  0.912  0.750  1.0
  Ca  Ca1  1  0.912  0.588  0.250  1.0
  Ca  Ca2  1  0.412  0.088  0.250  1.0
  Ca  Ca3  1  0.088  0.412  0.750  1.0
  W  W4  1  0.409  0.591  0.208  1.0
  W  W5  1  0.591  0.409  0.792  1.0
  W  W6  1  0.091  0.909  0.708  1.0
  W  W7  1  0.909  0.091  0.292  1.0
  O  O8  1  0.397  0.103  0.750  1.0
  O  O9  1  0.103  0.397  0.250  1.0
  O  O10  1  0.603  0.897  0.250  1.0
  O  O11  1  0.897  0.603  0.750  1.0
  O  O12  1  0.199  0.801  0.498  1.0
  O  O13  1  0.801  0.199  0.502  1.0
  O  O14  1  0.301  0.699  0.998  1.0
  O  O15  1  0.699  0.301  0.002  1.0
  O  O16  1  0.150  0.150  0.500  1.0
  O  O17  1  0.650  0.650  0.000  1.0
  O  O18  1  0.850  0.850  0.500  1.0
  O  O19  1  0.350  0.350  0.000  1.0
  O  O20  1  0.092  0.908  0.055  1.0
  O  O21  1  0.908  0.092  0.945  1.0
  O  O22  1  0.408  0.592  0.555  1.0
  O  O23  1  0.592  0.408  0.445  1.0
[/CIF]
.
The crystal structure described by CaWO4 crystallizes in the orthorhombic Cmce space group. Ca(1) is bonded in a 11-coordinate geometry to two equivalent O(3), two equivalent O(4), three equivalent O(1), and four equivalent O(2) atoms. W(1) is bonded in a 6-coordinate geometry to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Ca(1) and two equivalent W(1) atoms to form a mixture of distorted edge and corner-sharing OCa3W2 trigonal bipyramids. In the second O site, O(2) is bonded in a distorted trigonal non-coplanar geometry to four equivalent Ca(1) and one W(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Ca(1) and two equivalent W(1) atoms. In the fourth O site, O(4) is bonded in a distorted trigonal non-coplanar geometry to two equivalent Ca(1) and one W(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_CaWO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.791
_cell_length_b   7.791
_cell_length_c   5.362
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.190
_symmetry_Int_Tables_number   1
_cell_volume   281.350
_cell_formula_units_Z   4
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  0.588  0.912  0.750  1.0
  Ca  Ca1  1  0.912  0.588  0.250  1.0
  Ca  Ca2  1  0.412  0.088  0.250  1.0
  Ca  Ca3  1  0.088  0.412  0.750  1.0
  W  W4  1  0.409  0.591  0.208  1.0
  W  W5  1  0.591  0.409  0.792  1.0
  W  W6  1  0.091  0.909  0.708  1.0
  W  W7  1  0.909  0.091  0.292  1.0
  O  O8  1  0.397  0.103  0.750  1.0
  O  O9  1  0.103  0.397  0.250  1.0
  O  O10  1  0.603  0.897  0.250  1.0
  O  O11  1  0.897  0.603  0.750  1.0
  O  O12  1  0.199  0.801  0.498  1.0
  O  O13  1  0.801  0.199  0.502  1.0
  O  O14  1  0.301  0.699  0.998  1.0
  O  O15  1  0.699  0.301  0.002  1.0
  O  O16  1  0.150  0.150  0.500  1.0
  O  O17  1  0.650  0.650  0.000  1.0
  O  O18  1  0.850  0.850  0.500  1.0
  O  O19  1  0.350  0.350  0.000  1.0
  O  O20  1  0.092  0.908  0.055  1.0
  O  O21  1  0.908  0.092  0.945  1.0
  O  O22  1  0.408  0.592  0.555  1.0
  O  O23  1  0.592  0.408  0.445  1.0
[/CIF]
.