Spessartine

Al_2.03Ca_0.06F_0.96Fe_0.39H_0.36Mn_2.67O_11.04Si_2.7

Smyth, J. R.Madel, R. E.McCormick, T. C.Munoz, J. L.Rossman, G. R.

American Mineralogist (1990) 75, 314-318

a=11.628Å   b=11.628Å   c=11.628Å

α=90°   β=90°   γ=90°