The outlook for rare-earth minerals can be considered from the viewpoint of strategic and critical. This is best explained by an excerpt from a reputable study presented at the Symposium of Critical Materials Proceedings in 2015. An explanation of the demand and supply factors inter alia, taken from these proceedings is presented below.

Charley Creek is enriched in Nd, Dy, Pr, Er and Tb (and many more)  critical minerals ,ranked in order or abundance. These are highlighted in Table 1.  The minerals at Charley Creek feature as both critical and strategic from many perspectives according to the study, "Which minerals and strategic and critical" as cited below.