Lovozerit-Gruppe

Strukturformel: A₃B₃C₂MSi₆O₁₂O_6-x(OH)_x·nH₂O

M = Zr, Ti, Fe³⁺, Ca;
C = Ca, Mn²⁺, Na,[];
A = Na, Ca;
B = Na, [];
0 ≤ x ≤ 6;
n = 0–1;