Ephesite

Al₄H₂LiNaO₁₂Si₂

Slade, P. G.Schultz, P. K.Dean, C.

Neues Jahrbuch fur Mineralogie, Monatshefte (1987) 1987, 275-287

a=5.123Å   b=8.872Å   c=19.307Å

α=89.97°   β=95.15°   γ=89.96°