Cristobalite
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 = 3.6 GPa
Locality: Ellora Caves, India
_database_code_amcsd 0018344
4.746 4.746 6.445 90 90 90 P4_12_12
atom     x     y     z Uiso
Si   .3237 .3237     0 .012
O    .2338 .1546 .1992 .010