Lu
Liu Lingun
Journal of Physics and Chemistry of Solids (1975) 36, 31-35
a=3.5176Å b=3.5176Å c=5.5805Å
α=90° β=90° γ=120°
BaO
Journal of Applied Physics (1971) 42, 3702-3704
a=4.397Å b=4.397Å c=3.196Å
α=90° β=90° γ=90°