occupying the octahedral holes. Notice that the octahedral holes are along the edges (for a net of three cations) and in the center of the cube (one more cation). Thus we have four anions (FCC) and ...

The general formula is AB 2 O 4. The oxygens form an fcc lattice. The A cations occupy tetrahedral holes, and the B cation occupy octahedral holes. It then follows that 1/8 of the tetrahedral holes ...

In addition, each edge-shared oxygen is corner-shared with an adjacent infinite chain. As such, each Ti is coordinated to 6 oxygens (by definition for octahedral coordination) and each oxygen is ...