SiO2 - Cristobalite (beta)
Lattice parameters:
7.16

Radius:
Si 1.1760 (half-distance)
O: 0.6037 (half-distance)

Space group: 227

Wyckoff positions:
Si 2a
O  4c

Cristobalite_111.xml:
Cells: 1 x 1 x 1
Change: -0.125, -0.125, -0.125

Cristobalite_222.xml:
Cells: 2 x 2 x 2

Cutoff: Nodes
Polytopes: Neighbours 4

Source: http://www.minweb.co.uk/quartz/bcridata.html
