Cristobalite Peacor D R Zeitschrift fur Kristallographie 138 (1973) 274-298 High-temperature single-crystal study of the cristobalite inversion Sample: T = 248 C Locality: Ellora Caves, Hyderabad State, India _database_code_amcsd 0010755 7.166 7.166 7.166 90 90 90 *Fd3m .125 .125 .125 atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Si .125 .125 .125 .0159539 .0159539 .0159539 0 0 0 O 0 .0434926 -.0434926 1/6 .0166087 .0179334 .0179334 -.0005023 -.0005023 .0013341