Coralloite

As₂H₁₀Mn₃O₁₄

Callegari, A. M.Boiocchi, M.Ciriotti, M. E.Balestra, C.

American Mineralogist (2012) 97, 727-734

a=5.5828Å   b=9.7660Å   c=5.5455Å

α=94.467°   β=111.348°   γ=93.850°