AM_Tsepinite-K Formula: K.42 Na.2 Ca.2 (Ti2.8 Nb1.2) Sr.64 Si8 O32.02 Ba.14 H27.34 Name: Tsepinite-K Unit cell: 14.49 14.23 7.881 90.0 117.28 90.0 , V=1444.27 Space group: C1M1 (8)

Rosenberg K A , Rastsvetaeva R K , Pekov I V , Chukanov N V , Verin I A , Doklady Akademii Nauk SSSR , 393 (2003) p.784-787, Crystal structure of Sr-rich tsepinite