The structure described by NaAlSiO4 crystallizes in the cubic P2_13 space group. Na(1) is bonded in a trigonal planar geometry to three equivalent O(1) atoms. Al(1) is bonded to one O(2) and three equivalent O(1) atoms to form AlO4 tetrahedra that share corners with four equivalent Si(1)O4 tetrahedra. Si(1) is bonded to one O(2) and three equivalent O(1) atoms to form SiO4 tetrahedra that share corners with four equivalent Al(1)O4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Na(1), one Al(1), and one Si(1) atom. In the second O site, O(2) is bonded in a linear geometry to one Al(1) and one Si(1) atom. is represented by the CIF file [CIF]
data_NaAlSiO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.313
_cell_length_b   7.313
_cell_length_c   7.313
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   391.064
_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
  Na  Na0  1  0.227  0.273  0.727  1.0
  Na  Na1  1  0.273  0.727  0.227  1.0
  Na  Na2  1  0.727  0.227  0.273  1.0
  Na  Na3  1  0.773  0.773  0.773  1.0
  Al  Al4  1  0.715  0.785  0.215  1.0
  Al  Al5  1  0.785  0.215  0.715  1.0
  Al  Al6  1  0.215  0.715  0.785  1.0
  Al  Al7  1  0.285  0.285  0.285  1.0
  Si  Si8  1  0.977  0.523  0.477  1.0
  Si  Si9  1  0.523  0.477  0.977  1.0
  Si  Si10  1  0.477  0.977  0.523  1.0
  Si  Si11  1  0.023  0.023  0.023  1.0
  O  O12  1  0.872  0.334  0.527  1.0
  O  O13  1  0.372  0.166  0.473  1.0
  O  O14  1  0.128  0.834  0.973  1.0
  O  O15  1  0.166  0.473  0.372  1.0
  O  O16  1  0.973  0.128  0.834  1.0
  O  O17  1  0.473  0.372  0.166  1.0
  O  O18  1  0.334  0.527  0.872  1.0
  O  O19  1  0.527  0.872  0.334  1.0
  O  O20  1  0.834  0.973  0.128  1.0
  O  O21  1  0.666  0.027  0.628  1.0
  O  O22  1  0.027  0.628  0.666  1.0
  O  O23  1  0.628  0.666  0.027  1.0
  O  O24  1  0.149  0.149  0.149  1.0
  O  O25  1  0.351  0.851  0.649  1.0
  O  O26  1  0.649  0.351  0.851  1.0
  O  O27  1  0.851  0.649  0.351  1.0
[/CIF]
.
The structure described by NaAlSiO4 crystallizes in the cubic P2_13 space group. Na(1) is bonded in a trigonal planar geometry to three equivalent O(1) atoms. Al(1) is bonded to one O(2) and three equivalent O(1) atoms to form AlO4 tetrahedra that share corners with four equivalent Si(1)O4 tetrahedra. Si(1) is bonded to one O(2) and three equivalent O(1) atoms to form SiO4 tetrahedra that share corners with four equivalent Al(1)O4 tetrahedra. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Na(1), one Al(1), and one Si(1) atom. In the second O site, O(2) is bonded in a linear geometry to one Al(1) and one Si(1) atom. is represented by the CIF file [CIF]
data_NaAlSiO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.313
_cell_length_b   7.313
_cell_length_c   7.313
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   391.064
_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
  Na  Na0  1  0.227  0.273  0.727  1.0
  Na  Na1  1  0.273  0.727  0.227  1.0
  Na  Na2  1  0.727  0.227  0.273  1.0
  Na  Na3  1  0.773  0.773  0.773  1.0
  Al  Al4  1  0.715  0.785  0.215  1.0
  Al  Al5  1  0.785  0.215  0.715  1.0
  Al  Al6  1  0.215  0.715  0.785  1.0
  Al  Al7  1  0.285  0.285  0.285  1.0
  Si  Si8  1  0.977  0.523  0.477  1.0
  Si  Si9  1  0.523  0.477  0.977  1.0
  Si  Si10  1  0.477  0.977  0.523  1.0
  Si  Si11  1  0.023  0.023  0.023  1.0
  O  O12  1  0.872  0.334  0.527  1.0
  O  O13  1  0.372  0.166  0.473  1.0
  O  O14  1  0.128  0.834  0.973  1.0
  O  O15  1  0.166  0.473  0.372  1.0
  O  O16  1  0.973  0.128  0.834  1.0
  O  O17  1  0.473  0.372  0.166  1.0
  O  O18  1  0.334  0.527  0.872  1.0
  O  O19  1  0.527  0.872  0.334  1.0
  O  O20  1  0.834  0.973  0.128  1.0
  O  O21  1  0.666  0.027  0.628  1.0
  O  O22  1  0.027  0.628  0.666  1.0
  O  O23  1  0.628  0.666  0.027  1.0
  O  O24  1  0.149  0.149  0.149  1.0
  O  O25  1  0.351  0.851  0.649  1.0
  O  O26  1  0.649  0.351  0.851  1.0
  O  O27  1  0.851  0.649  0.351  1.0
[/CIF]
.