Catapleiite

CaH₄O₁₁Si₃Zr

Merlino SPasero MBellezza MPushcharovsky D YGobetchia E RZubkova N VPekov I V

The Canadian Mineralogist (2004) 42, 1037-1045

a=7.378Å   b=12.779Å   c=10.096Å

α=90°   β=90°   γ=90°