Cristobalite
Le Bail A
Journal of Non-Crystalline Solids 183 (1995) 39-42
Modelling the silica glass structure by the Rietveld method
Note: model for amorphous silica based on cristobalite-type topology
_database_code_amcsd 0020708
7.22 7.09 7.30 90 90 90 P2_12_12_1
atom    x    y    z
Si1  .277 .275 .282
Si2  .009 .022 .016
O1   .125 .149 .152
O2   .635 .657 .061
O3   .065 .646 .654
O4   .670 .060 .621