Synthesis and Diffraction. Crystalline samples of LiIn 2 SbO 6 and BiGaTeO 6 were synthesized by high-temperature solid-state methods while BiAlTeO 6 was synthesized from a flux to overcome substantial impurities observed from the previously described method. Laboratory powder XRD confirmed the crystal structure and crystalline purity of each sample. Based on the flux composition, this scattering contribution is attributed to amorphous sodium tellurates.