Zeophyllite

Ca₁₃F₁₀H₁₂O₃₄Si₁₀

Mikenda, W.Pertlik, F.Povondra, P.Ulrych, J.

Mineralogy and Petrology (1997) 61, 199-209

a=9.377Å   b=9.377Å   c=36.57Å

α=90°   β=90°   γ=120°