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: 16
_database_code_amcsd 0007881
6.6395 8.0488 5.4184 90 99.9967 90 Cc
atom      x      y      z
Si1       0 .03951     .5
Si2  .04928 .41410 .41569
O1   .29789 .58048 .97139
O2   .12542 .01394 .78199
O3   .47304 .96257 .11972
O4   .44951 .73454 .46074