AM_SiO2_19 Formula: Si O2 Name: SiO2 Unit cell: 5.4515 5.3227 5.8091 77.9812 82.2353 54.5766 , V=134.33 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: 20