What Are Rare Earth Elements — September 17, 2026

The 17-Element Group Everyone Calls "Rare Earths"

Neodymium, trading at ₹12.41 per gram today, September 17, 2026, belongs to a group of 17 chemically similar elements collectively known as the rare earths — the 15 lanthanide elements, plus scandium and yttrium, which get grouped in because they share the same ore deposits and similar chemical behaviour. It's a strange, slightly misleading name, and understanding why explains a lot about how this whole market works.

Here's the part that surprises most people: rare earths are not, for the most part, actually rare in the ground. Several of them are more abundant in the earth's crust than gold, silver or platinum. What makes them "rare" in any practical sense is that they almost never occur in deposits concentrated enough to mine economically, and separating one rare earth from another — they're chemically very similar, which is exactly the problem — is a difficult, multi-stage, environmentally intensive process. The name refers to how hard they are to produce, not how much of them exists.

Why Neodymium Leads the Pack Commercially

Of the 17 rare earths, neodymium stands well apart from the others in commercial terms. Its defining role is in neodymium-iron-boron magnets, or NdFeB — the strongest class of permanent magnet in common industrial use today. Those magnets are essential components in EV motors, wind turbine generators, hard disk drives and a long list of consumer electronics. No other rare earth has a single use case that pulls anywhere near this much demand on its own.

Neodymium doesn't work entirely alone

Two of its lanthanide cousins, dysprosium and terbium, are frequently added in small quantities to neodymium-iron-boron magnets specifically to improve their heat resistance — a genuinely important property for a magnet sitting inside an EV motor that runs hot under load. Other rare earths serve real but smaller roles elsewhere in the economy: cerium and lanthanum, for instance, show up in catalysts and in glass polishing. None of them, though, comes close to matching neodymium's scale of demand.

Why This Group Dynamic Matters for the Price on This Page

Because rare earths are typically mined from the same ore deposits and separated at the same processing plants, they don't move through the supply chain independently of each other. A processing bottleneck, an export policy change, or a shift in a major producer's output tends to ripple across several rare earths at once rather than affecting neodymium in isolation. That's part of why understanding the rare-earth group as a whole gives a fuller picture of neodymium's price behaviour than looking at neodymium alone would.

It's also why the question of who controls this supply chain — covered in more depth on the site's page about China's role in rare earth supply — matters just as much for neodymium as it does for the group it belongs to.