# Rare Earth Elements The rare earth elements are a set of seventeen metals (the lanthanides plus scandium and yttrium) prized for magnetic, luminescent, and electrochemical properties that are hard to substitute. They are essential to the strongest permanent magnets — used in electric-vehicle motors, wind turbines, hard drives, earbuds, and precision-guided munitions — as well as to phone vibration motors, screen phosphors, and optics. Despite the name they are not geologically scarce; what is "rare" is finding them in concentrated, economically minable deposits and, above all, refining them, which is chemically nasty and environmentally hazardous. ## Why it matters here Rare earths are the textbook case of a supply-chain chokepoint as an instrument of state power — the materials version of the [[Semiconductor]] story, and a recurring feature of the [[Tech Decoupling]] narrative. **The Chinese near-monopoly.** [[China]] controls the overwhelming majority of the world's rare-earth *processing* (and a large share of mining), a position built over decades partly by absorbing the environmental costs that Western producers offloaded. This gives Beijing a coercion lever: it has restricted or threatened rare-earth exports during disputes — notably against Japan in 2010, and through tightened export licensing on rare earths and related elements (gallium, germanium) in the 2020s as a direct counter to US [[Chip Export Controls]]. Rare earths are thus China's reciprocal weapon in the same trade-and-tech conflict. **The policy response.** "Critical minerals" security became a bipartisan US priority — stockpiling, funding domestic mining and processing (e.g., reviving the Mountain Pass mine in California), and seeking allied supply (Australia, Canada). This is industrial policy of the same family as the [[CHIPS and Science Act]], and it shares the same tension on the right: national-security hawks favor government intervention to break dependence, while it sits awkwardly with free-market orthodoxy. A precision note worth keeping: "rare earths," "critical minerals," and battery metals (lithium, cobalt — see [[Conflict Minerals]]) are distinct categories that political coverage routinely blurs into one "minerals" panic. Cobalt and lithium are not rare earths; the strategic dependence on China spans all of them, but the chemistry and the supply problems differ. ## See Also - [[Supply Chain]] — the broader dependency rare earths exemplify - [[Chip Export Controls]] — the US measure China's rare-earth restrictions answer - [[Conflict Minerals]] — the adjacent (distinct) battery-and-conflict minerals problem - [[Tech Decoupling]] · [[China]] — the geopolitical frame - [[Mineralogy and Natural Resources]] — the geology of extraction and the critical-minerals race