AM_Lepkhenelmite-Zn Formula: Ba.92 K.54 Ca.26 Na.24 Sr.22 Zn.58 Mg.01 Fe.04 Mn.15 Ti2.968 Nb1.024 (Al.112 Si7.888) O31.222 H10.667 Name: Lepkhenelmite-Zn Unit cell: 14.381 13.889 7.793 90.0 117.52 90.0 , V=1380.43 Space group: C1M1 (8)

Pekov I V , Chukanov N V , Shilov G V , Kononkova N N , Zadov A E , Zapiski Vserossijskogo Mineralogicheskogo Obshchestva , 133 (2004) p.49-59, Lepkhenelmite-Zn, Ba2Zn(Ti,Nb)4[Si4O12]2(O,OH)4*7(H2O) - a new mineral of the, labuntsovite group and its crystal structure, Locality: Lepkhe-Nelm Mt, Lovozero, Kola Peninsula, Russia, Note: y(M1) corrected