AM_Berborite_1 Formula: Be2 B O5 H3 Name: Berborite Unit cell: 4.433 4.433 10.638 90.0 90.0 120.0 , V=181.04 Space group: P63 (173)

Giuseppetti G , Mazzi F , Tadini C , Larsen A O , Asheim A , Raade G , Neues Jahrbuch fur Mineralogie, Abhandlungen , 162 (1990) p.101-116, Berborite polytypes, Locality: Saga I larvikite quarry, Morje, Porgrunn, Tvelan District, Norway, Sample: 2H polytype, Note: anisoU s from ICSD