Ixiolite

Fe_0.177Mn_0.12Nb_0.124O₂Sn_0.128Ta_0.438Ti_0.006W_0.001Zr_0.006

Nickel, E. H.Rowland, J. F.McAdam, R. C.

American Mineralogist (1963) 48, 961-979

a=5.731Å   b=4.742Å   c=5.152Å

α=90°   β=90°   γ=90°