Iron titanate, FeTiO3, forms in the illmenite crystal structure that consists of an HCP arrangement of O2- ions (atomic radius O= = 0.140 nm; Fe +2 = 0.077; Ti+4 = 0.068
Which type of interstitial site will the Fe2+ ions occupy?
Which type of interstitial site will the Ti4+ ions occupy?
What fraction of the total octahedral sites will be occupied?