Na8 (Al8 Si88 O192) (H2 O)16

Al_7.9968O₁₉₂Si_88.0032

Kokotailo, G.T.Meier, W.M.Chu, P.A.Lawton, S.L.

Nature (London) (1978) 275, 119-1120

a=20.12Å   b=20.12Å   c=13.44Å

α=90°   β=90°   γ=90°