AM_Silicon Formula: Si Name: Silicon Unit cell: 6.636 6.636 6.636 90.0 90.0 90.0 , V=292.23 Space group: IA3 (206)

Kasper J S , Richards S M , Acta Crystallographica , 17 (1964) p.752-755, The crystal structures of new forms of silicon and germanium, Locality: synthetic