SiO2
Boisen M B, Gibbs G V, Bukowinski M S T
Physics and Chemistry of Minerals 21 (1994) 269-284
Framework silica structures generated using simulated annealing
with a potential energy function based on an H6Si2O7 molecule
Sample: 1
_database_code_amcsd 0007866
8.6557 8.6557 4.7702 90 90 90 I-4
atom      x      y      z
Si   .17244 .17581 .02405
O1   .28204 .19187 .29810
O2   .69652 .50674 .38447