AM_Ikranite
Formula: Zr3.4 Si24.3 O79.661 Ca3.3 Mn1.398 Ce.33 La.132 Nd.036 Na9.627 Sr.504 Fe2.1 Nb.1 Ti.1 H18.453 K.3 Cl.74
Name: Ikranite
Unit cell: 14.167 14.167 30.081 90.0 90.0 120.0 , V=5228.52
Space group: R3M (160)

Rastsvetaeva R K , Chukanov N V , Crystallography Reports , 48 (2003) p.717-720, Ikranite: composition and structure of a new mineral of the eudialyte group, Locality: Mount Karnasurt, Lovozero alkaline massif, Kola Peninsula, Russia