Enstatite

Ca_0.052Mg_1.948O₆Si₂

Carlson, W. D.Swinnea, J. S.Miser, D. E.

American Mineralogist (1988) 73, 1255-1263

a=18.280Å   b=8.834Å   c=5.197Å

α=90°   β=90°   γ=90°