AM_Ikranite_1 Formula: Zr3.399 Ca3.3 Mn1.398 Ce.498 Na9.63 Sr.504 Si24.3 O79.16 Fe2.1 Nb.1 Ti.1 K.3 H14.43 Cl.26 Name: Ikranite Unit cell: 14.167 14.167 30.081 90.0 90.0 120.0 , V=5228.52 Space group: R3M (160)

Ekimenkova I A , Rastsvetaeva R K , Chukanov N V , Khasanov S S , Doklady Chemistry , 371 (2000) p.65-69, Crystal structure of an oxonium-containing analogue of eudialyte, Locality: Karnasurt Mountains, Lovozero massif, Kola Peninsula, Russia