AM_Berborite_2 Formula: Be2 B O5 H3 Name: Berborite Unit cell: 4.431 4.431 10.663 90.0 90.0 120.0 , V=181.31 Space group: P3C1 (158)

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: 2T polytype, Note: anisoU s from ICSD