374 XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3
Figure 4. A) The x-axis represents the estimated reserves of each rare-earth elements (REEs), while the left-hand yaxis
displays these reserves in years. On the right-hand y-axis, the abundance of these elements in the earth’s crust is indicated. B)
Highlighting the criticality of rare-earth metals REEs to the energy transition. The left figure is shortterm, and the right figure
is medium-term. The star symbols for each element are colored to correspond with the criticality index in the legend. Note
that the REEs, particularly dysprosium (Dy), Eu, Nd, terbium (Tb), and Y, are associated with both a high supply risk, and are
considered highly valuable to clean energy within the next 13 years
Figure 4. A) The x-axis represents the estimated reserves of each rare-earth elements (REEs), while the left-hand yaxis
displays these reserves in years. On the right-hand y-axis, the abundance of these elements in the earth’s crust is indicated. B)
Highlighting the criticality of rare-earth metals REEs to the energy transition. The left figure is shortterm, and the right figure
is medium-term. The star symbols for each element are colored to correspond with the criticality index in the legend. Note
that the REEs, particularly dysprosium (Dy), Eu, Nd, terbium (Tb), and Y, are associated with both a high supply risk, and are
considered highly valuable to clean energy within the next 13 years