AM_Na18Mn3Ca3Zr3Si26O76_H2O Formula: Na16.002 Ca2.1 Ce.54 La.312 Nd.198 Y.099 Mn3.6 Zr3.3 Ti.099 Si25.6 O77.11 Nb.4 Fe.15 Hf.051 Sr.45 K.099 F.28 Cl.17 H3.78 Name: Na18Mn3Ca3Zr3Si26O76*H2O Unit cell: 14.182 14.182 30.37 90.0 90.0 120.0 , V=5289.94 Space group: R113 (1)

Rastsvetaeva R K , Khomyakov A P , Nekrasov Y V , Crystallography Reports , 44 (1999) p.824-828, Crystal structure of a novel analog of eudialyte with R3 symmetry, Locality: Alluaiv mountain, Lovozero alakaline massif, Kola Peninsula, Russia