Seifertite

O₂Si

Dera, P.Prewitt, C. T.Boctor, N. Z.Hemley, R. J.

American Mineralogist (2002) 87, 1018-1023

a=4.097Å   b=5.0462Å   c=4.4946Å

α=90°   β=90°   γ=90°