AM_SiO2_18 Formula: Si O2 Name: SiO2 Unit cell: 4.7082 5.5282 5.0064 90.0 107.8346 90.0 , V=124.04 Space group: P1M1 (6)

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: 19