Spinel, MgAl 2 O 4 (download cif), is a rare gemstone that was used to imitate rubies. The structure has face-centered cubic symmetry, and is a little heavy to understand. The general formula is AB 2 ...

Ivy Spinel is a 3yo b unknown from Japan trained by Koji Maki, who is based at . It is sired by the stallion To The World out of the dam Kurino Bandaisan. Ivy Spinel is yet to break its maiden status, ...