AM_Cristobalite_7 Formula: Si O2 Name: Cristobalite Unit cell: 4.986 4.986 6.977 90.0 90.0 90.0 , V=173.45 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 = 103 C, Locality: Ellora Caves, Hyderabad State, India