AM_SiO2_25 Formula: Si O2 Name: SiO2 Unit cell: 7.66 4.1 5.03 90.0 117.9 90.0 , V=139.61 Space group: P121/C1 (14)

Haines J , Leger J M , Gorelli F , Hanfland M , Physical Review Letters , 87 (2001) p.155503-155503, Crystalline post-quartz phase in silica at high pressure, Sample at ambient conditions