AM_Cristobalite_9 Formula: Si O2 Name: Cristobalite Unit cell: 4.993 4.993 7.005 90.0 90.0 90.0 , V=174.64 Space group: P41212 (92)

Peacor D R , Zeitschrift fur Kristallographie , 138 (1973) p.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