Cristobalite Peacor D R Zeitschrift fur Kristallographie 138 (1973) 274-298 High-temperature single-crystal study of the cristobalite inversion Note: Cell has been corrected Sample: T = 142 C Locality: Ellora Caves, Hyderabad State, India _database_code_amcsd 0010750 4.989 4.989 6.991 90 90 90 P4_12_12 atom x y z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Si .297673 .297673 0 .0102561 .0102561 .0054842 -.0002928 .0008236 -.0008236 O .2410227 .0999381 .1760246 .0341635 .0116554 .0089425 -.0017053 .0047251 .0025348