(Na5.38K1.99Mg0.24)[Al7.66Si28.34O72.09]29.83H2O

Al_7.66H_59.66K_1.99Mg_0.24Na_5.38O_101.92Si_28.34

Cametti, G.Pacella, A.Mura, F.Rossi, M.Ballirano, P.

American Mineralogist (2013) 98, 2155-2163

a=13.2357(5)Å   b=13.2357(5)Å   c=15.0652(6)Å

α=90°   β=90°   γ=120°