AM_SiO2_23 Formula: Si O2 Name: SiO2 Unit cell: 4.6409 5.2953 6.7956 111.506 93.9553 90.7337 , V=154.87 Space group: P1 (1)

Boisen M B , Gibbs G V , Bukowinski M S T , Physics and Chemistry of Minerals , 21 (1994) p.269-284, Framework silica structures generated using simulated annealing, with a potential energy function based on an H6Si2O7 molecule, Sample: 24