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 = 179 C Locality: Ellora Caves, Hyderabad State, India _database_code_amcsd 0010751 4.993 4.993 7.005 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 .2966494 .2966494 0 .0117442 .0117442 .0060576 .0002363 .0012906 -.0012906 O .2406035 .0965985 .1746805 .0402564 .0141191 .0109623 -.0011189 .0056556 .0022687