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: 3
_database_code_amcsd 0007868
5.0482 6.6568 4.9371 90 90 90 Pna2_1
atom      x      y      z
Si   .05215   .625      0
O1   .02858 .56850 .31851
O2   .14569 .19001 .41350