AM_Selenium_20 Formula: Se Name: Selenium Unit cell: 3.829 3.829 2.791 90.0 90.0 120.0 , V=35.44 Space group: R-3M (166)

Akahama Y , Kobayashi M , Kawamura H , Japanese Journal of Applied Physics , 31 (1992) p.1621-1624, Structural study on pressure-induced phase transition from beta-Po type to bcc in selenium at 140 GPa, Locality: synthetic, Sample: at P = 120 GPa, Note: structure known as beta-Po type, phase Se V