Cristobalite Downs R T, Palmer D C American Mineralogist 79 (1994) 9-14 The pressure behavior of alpha cristobalite P = 0.73 GPa Locality: Ellora Caves, India _database_code_amcsd 0001631 4.9028 4.9028 6.7782 90 90 90 P4_12_12 atom x y z Biso Si .3086 .3086 0 .63 O .2364 .1198 .1870 1.07