MgO3Si
Tschauner, O.Kiefer, B.Liu, H.Sinogeikin, S.Somayazulu, M.Luo, S.-N.
American Mineralogist (2008) 93, 533-539
a=9.477Å b=6.205Å c=4.256Å
α=90° β=98.75° γ=90°
a=7.026Å b=6.228Å c=4.262Å
α=90° β=95.85° γ=90°