AM_Quartz_40 Formula: Si O2 Name: Quartz Unit cell: 4.535 4.535 5.17 90.0 90.0 120.0 , V=92.08 Space group: P3121 (152)

Hazen R M , Finger L W , Hemley R J , Mao H K , Solid State Communications , 72 (1989) p.507-511, High-pressure crystal chemistry and amorphization of alpha-quartz, Locality: synthetic, Sample: P = 12.5 GPa