Ba
Hirst, R. G.King, A. J.Kanda, F. A.
Journal of Physical Chemistry (1956) 60, 302-304
a=5.013Å b=5.013Å c=5.013Å
α=90° β=90° γ=90°
Sr
a=6.076Å b=6.076Å c=6.076Å
a=4.87Å b=4.87Å c=4.87Å
a=4.28Å b=4.28Å c=7.05Å
α=90° β=90° γ=120°