AM_Leifite Formula: Si15.84 Al1.98 Zn.18 Be2 Na6.57 Cs.05 Rb.11 K.1 O39.63 F2 H2 Name: Leifite Unit cell: 14.3608 14.3608 4.857 90.0 90.0 120.0 , V=867.47 Space group: P-3M1 (164)

Sokolova E V , Huminicki D M C , Hawthorne F C , Agakhanov A A , Pautov L A , Grew E S , The Canadian Mineralogist , 40 (2002) p.183-192, The crystal chemistry of telyushenkoite and leifite, A Na6[Be2Al3Si15O39F2],, A = Cs, Na