Ca2 (H2 Si2 O7) (H2 O)

Ca₂H₄O₈Si₂

Tseng, J.K.Hsueh, C.Y.Peng, C.C.

Kexue Tongbao (= Bulletin der Wissenschaften) (1966) 17, 45-48

a=11.02Å   b=19.74Å   c=6.08Å

α=90°   β=90°   γ=90°