Pseudosinhalite

Al₃B₂HMg₂O₁₀

Daniels, P.Krosse, S.Werding, G.Schreyer, W.

Contributions to Mineralogy and Petrology (1997) 128, 261-271

a=7.455Å   b=4.330Å   c=9.825Å

α=90°   β=110.68°   γ=90°