Coalingite

C_0.03H_7.64Fe_0.11Mg_0.87Mn_0.02O_2.48

Pastor-Rodriguez JTaylor, H. F. W.

Mineralogical Magazine (1971) 38, 286-294

a=3.12Å   b=3.12Å   c=37.4Å

α=90°   β=90°   γ=120°