SiO2 crystallizes in the cubic Pa-3 space group. Si(1) is bonded to six equivalent O(1) atoms to form corner-sharing SiO6 octahedra. The corner-sharing octahedral tilt angles are 60°. O(1) is bonded in a trigonal planar geometry to three equivalent Si(1) atoms.
SiO2 crystallizes in the cubic Pa-3 space group. Si(1) is bonded to six equivalent O(1) atoms to form corner-sharing SiO6 octahedra. The corner-sharing octahedral tilt angles are 60°. All Si(1)-O(1) bond lengths are 1.83 Å. O(1) is bonded in a trigonal planar geometry to three equivalent Si(1) atoms.