Reports on oxides are exceedingly rare. A pair of very recent reports suggests growing interest in this area. Yamada et al. carried out field-swept In NMR to determine the quadrupolar coupling parameters of the two indium sites in In 2 O 3 , complementing the values determined via nuclear quadrupolar resonance (NQR) spectroscopy in the literature; chemical shift information was not determined. In NMR to study amorphous indium gallium oxide processed with varying polyvinyl alcohol contents. In the latter study, a distinct In signal was detected and observed to narrow slightly with polyvinyl alcohol, but no NMR parameters could be extracted. It is clear that there is a need to establish structure-spectral relationships for these important inorganic species, particularly in oxide local environments. The initial focus of this work was to demonstrate the applicability of In and 209 Bi NMR to oxides, but it is noted that this report is also one of the first to describe 121 Sb NMR of an oxide material. For quadrupolar nuclei, it is generally desired to acquire spectra at the highest available field, B 0 , to minimize the breadth of the central-transition static powder lineshape,  CT , which is given from second-order perturbation theory as: