The town of Ytterby near Stockholm, Sweden, yielded the chemistry world with ores rich in mysterious new elements. Named after its namesake town, ytterbium is one of the rare earth metals misnamed for not actually being all that rare but infamous for the tremendous difficulty needed to separate it from its neighbors in this group.

Our ytterbium samples are dendritic crystals with fascinating textures and irregular sizes. 

CAS 7440-64-4