Hambergite_4 Formula: Be2 B H O4 Name: Hambergite Unit cell: 9.654 12.347 4.4364 90.0 90.0 90.0 , V=528.81 Space group: PBCA (61)
Burns P C , Novak M , Hawthorne F C , The Canadian Mineralogist , 33 (1995) p.1205-1213, Fluorine-hydroxyl variation in hambergite: A crystal-structure study, Note: sample HM5, Locality: Kracovice