AM_Boron_2 Formula: B34.964 Name: Boron Unit cell: 10.9251 10.9251 23.8143 90.0 90.0 120.0 , V=2461.61 Space group: R-3M (166)
Callmer B , Acta Crystallographica, Section B , 33 (1977) p.1951-1954, An accurate refinement of the beta-rhombohedral boron structure, Locality: synthetic