Terbium(III,IV) Oxide, o nisi taimi e taʻua o le tetraterbium heptaoxide, o loʻo i ai le fua Tb4O7, o se mea e sili ona le mafai ona faʻafefeteina thermally stable Terbium source.Tb4O7 o se tasi o le faʻapipiʻi faʻatau pisinisi autu, ma na o le pau lea o le oloa o loʻo i ai le itiiti ifo i le Tb (IV) (terbium i le +4 oxidation. setete), faʻatasi ai ma le Tb(III) sili atu ona mautu.E gaosia e ala i le faʻamafanafanaina o le uʻamea oxalate, ma faʻaaogaina i le sauniuniga o isi mea faʻapipiʻi terbium.Terbium e fausia ai isi oxide tetele se tolu: Tb2O3, TbO2, ma Tb6O11.