inorganic compound > rare earth compound > lanthanide compound > terbium compound > iron terbium oxide

inorganic compound > iron compound > iron terbium oxide

... > inorganic compound > chalcogen compound > oxygen compound > oxides > iron rare earth oxide > iron terbium oxide

inorganic compound > iron compound > iron rare earth oxide > iron terbium oxide

inorganic compound > rare earth compound > lanthanide compound > iron rare earth oxide > iron terbium oxide