AM_Ivanyukite-Na-T Formula: Ti12 Si9 K1.56 Na4.32 O68 H40 Name: Ivanyukite-Na-T Unit cell: 10.921 10.921 13.885 90.0 90.0 120.0 , V=1434.17 Space group: R3M (160)

Yakovenchuk V N , Nikolaev A P , Selivanova E A , Pakhomovsky Y A , Korchak J A , Spiridonova D V , Zalkind O A , Krivovichev S V , American Mineralogist , 94 (2009) p.1450-1458, Ivanyukite-Na-T, ivanyukite-Na-C, ivanyukite-K, and ivanyukite-Cu:, New microporous titanosilicates from the Khibiny massif, (Kola Peninsula, Russia) and crystal structure of ivanyukite-Na-T, Locality: Koashva Mountain, Khibiny Massif, Kola Peninsula, Russia