Mg3Si2O5(OH)4

H₄Mg₃O₉Si₂

Falini, G.Foresti, E.Gazzano, M.Gualtieri, A.F.Leoni, M.Lesci, I.G.Roveri, N.

Chemistry - European Journal (2004) 10, 3043-3049

a=5.340(1)Å   b=9.241(1)Å   c=14.689(2)Å

α=90°   β=93.66(3)°   γ=90°