Hydroxylborite

BH₃Mg₃O₆

Rudnev, V. V.Chukanov, N. V.Nechelyustov, G. N.Yamnova, N. A.

Geology of Ore Deposits (2007) 49, 710-719

a=8.924Å   b=8.924Å   c=3.116Å

α=90°   β=90°   γ=120°