Vauxite

Al₂FeH₁₄O₁₆P₂

Baur, W. H.Rama Rao, B.

American Mineralogist (1968) 53, 1025-1033

a=9.13Å   b=11.59Å   c=6.14Å

α=98.3°   β=92.0°   γ=108.4°