Al2 (Si O4) O

Al₂O₅Si

Wondraczek, L.Borchardt, G.Kilo, M.Heide, G.Nedeljkovic, N.Jackson, R.A.

Physics and Chemistry of Minerals (Germany) (2002) 29, 341-345

a=7.588Å   b=7.688Å   c=5.777Å

α=90°   β=90°   γ=90°