AM_Calciohilairite Formula: Ca.333 Na.333 O11 H4 Zr Si3 Name: Calciohilairite Unit cell: 10.498 10.498 7.975 90.0 90.0 120.0 , V=761.16 Space group: R32 (155)

Pushcharovsky D Y , Pekov I V , Pasero M , Gobechiya E R , Merlino S , Zubkova N V , Crystallography Reports , 47 (2002) p.748-752, Crystal structure of cation-deficient calciohilairite and possible mechanisms of, decationization in mixed-framework minerals, Locality: Lovozero massif, Kola Peninsula, Russia