ODM2 Variable Name Controlled Vocabulary ODM2 Working Group A vocabulary for describing the name of Variables. Neodymium Neodymium is a chemical element with symbol Nd and atomic number 60. It is a soft silvery metal that tarnishes in air. Neodymium was discovered in 1885 by the Austrian chemist Carl Auer von Welsbach. Wikipedia https://en.wikipedia.org/wiki/Neodymium Added to support Critical Zone Observatory (CZO) data use cases.