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 = 5.4 GPa Locality: Ellora Caves, India _database_code_amcsd 0018345 4.682 4.682 6.311 90 90 90 P4_12_12 atom x y z Uiso Si .3316 .3316 0 .009 O .2297 .1648 .2119 .005