CLASSIFICATIONS OF METALS
PROSPECTIVE RARE METALS Mark II:
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)
INDUSTRIAL CLASSIFICATION OF METALS
PECTIVE RARE METALS: Rare Light Metals: Beryllium (Be), Lithium (Li), Rubidium (Rb)
Rare Refractory Metals: Niobium (Nb), Tantalum (Ta), Titanium (Ti), Zirconium (Zr), Hafnium (Hf), Rhenium (Re)
Rare Trace Metals: Gallium (Ga), Indium (In), Germanium (Ge), Hafnium (Hf), Rhenium (Re)
Rare Earth Metals: Scandium (Sc), Europium (Eu), Terbium (Tb), Dysprosium (Dy), Neodymium (Nd), Cerium (Ce), Lanthanum (La), Yttrium (Y)
Rare Radioactive Metals: Uranium (U), Thorium (Th)