What exactly is Gadolinium oxide? Gd2O3 is the chemical formula for gadolinium dioxide. It has a molecularweight of 362.498000 with a melting temperature of 2330 and a density 7.407. It is white in color. Physical And Chemical Properties of Gadolinium Oxide Gadolinium oxide is a white, odorless and amorphous powder. It is not soluble, however…