铒箔, Erbium foil

钆锭, Gadolinium ingot/button

锗粉, Germanium powder

钬片, Holmium pieces

铟粉, Indium powder

铟锭, Indium ingot

铟线, Indium wire

铱黑, Iridium black

铱箔, Iridium foil

海绵状铁, Iron sponge