Normal spinel structures are usually cubic closed-packed oxides with one octahedral and two tetrahedral sites per oxide.

There are five distinct octahedral sites and two different tetrahedral sites.

The vacant tetrahedral sites provoked research by von Stackelberg and Paulus (1935), who determined the primary structure.

But in theory it would be CrH if the substance was pure and all the tetrahedral sites were occupied by hydrogen atoms.

Charnock et al confirmed that carrollite contains Cu wholly within the tetrahedral sites.

Hydrogrossular is a garnet variety in which a Si is missing from a tetrahedral site.

Gonnardite has the same framework structure as natrolite, but a disordered Si, Al distribution on the tetrahedral sites.

Chains are staggered so that none of the independent tetrahedral sites occupied by Si has OH or F corners.

There are three distinct octahedral sites, M1, M2, and M3, and a single tetrahedral site.

The unit cell of fcc C solid contains voids at 4 octahedral and 12 tetrahedral sites.