Table 1.
The U.S. Geological Survey 2022 list of critical minerals 1.
| Aluminum (Al) | Graphite (C) | Rubidium (Rb) |
| Antimony (Sb) | Hafnium (Hf) | Ruthenium (Ru) |
| Arsenic (As) | Holmium (Ho) | Samarium (Sm) |
| Barite (barium; Ba) | Indium (In) | Scandium (Sc) |
| Beryllium (Be) | Iridium (Ir) | Tantalum (Ta) |
| Bismuth (Bi) | Lanathanum (La) | Tellurium (Te) |
| Cerium (Ce) 2 | Lithium (Li) | Terbium (Tb) |
| Cesium (Cs) | Lutetium (Lu) | Thulium (Tm) |
| * Chromium (Cr) | Magnesium (Mg) | Tin (Sn) |
| * Cobalt (Co) | * Manganese (Mn) | Titanium (Ti) |
| Dysprosium (Dy) | Neodymium (Nd) | Tungsten (W) |
| Erbium (Er) | Nickel (Ni) | Vanadium (V) |
| Europium (Eu) | Niobium (Nb) | Ytterbium (Yb) |
| Fluorspar (Fluorine; F) | Palladium (Pd) | Yttrium (Y) |
| Gadolinium (Gd) | Platinum (Pt) | * Zinc (Zn) |
| Gallium (Ga) | Praseodymium (Pr) | Zirconium (Zr) |
| Germanium (Ge) | Rhodium (Rh) |
1 2022 Final List of Critical Minerals. 87 Fed. Reg. 10381. 24 February 2022. 2 Rare earth elements are italicized. * Nutritionally essential trace elements per considerations this manuscript.