Ytterby, Sweden/ytterby010
Previous | Home | NextThe first paragraph of the sign explains how Arrhenius discovered a mineral, later called gadolinite, from which the rare earths yttrium, ytterbium, terbium, erbium, holmium, and scandium, and also tantalum, were eventually isolated. The initial analysis was done by Gadolin at Åbo Academy (now the University of Turku, Finland), who discovered the first rare earth yttrium; and tantalum was discovered by Ekeberg at Uppsala University, Sweden.
