PROSPECTIVE RARE METALS:
Rare Light Metals: Beryllium (Be)
Rare Refractory Metals: Rhenium (Re), Hafnium (Hf), Tantalum (Ta), Tungsten (W)
Rare Trace Metals: Germanium (Ge), Indium (In), Gallium (Ga), Tellurium (Te), Selenium (Se)
Rare
Earth Metals: Terbium (Tb), Dysprosium (Dy), Praseodymium (Pr),
Neodymium (Nd), Europium (Eu), Yttrium (Y), Scandium (Sc), Erbium (Er)
Rare Radioactive Metals: Uranium (U)
Ph.D. Natalia Petrovskaya