(Mn0.96 Mg1.04) (Si2 O6)

Mg_1.04Mn_0.96O₆Si₂

Gortdon, W.A.Peacor, D.R.Brown, P.E.Allard, L.F.Essene, E.J.

American Mineralogist (1981) 66, 127-141

a=9.76Å   b=8.93Å   c=5.27Å

α=90°   β=106.44°   γ=90°