Cristobalite II
Dera P, Lazarz J D, Prakapenka V B, Barkley M, Downs R T
Physics and Chemistry of Minerals 38 (2011) 517-529
New insights into the high-pressure polymorphism of SiO2 cristobalite
Note: P = 4.9 GPa
Note z-coordinate of O2 is corrected
Locality: Ellora Caves, India
_database_code_amcsd 0018349
8.011 4.544 8.890 90 121.0 90 P2_1/c
atom     x     y     z Uiso
Si1  .6265 .2742 .8472 .011
Si2  .8757 .0079 .7218 .014
O1   .8110 .1122 .8606 .015
O2   .6980 .4261 .0330 .019
O3   .4636 .0326 .8042 .011
O4   .0665 .1704 .7533 .016