Element · Dy · atomic number 66

Dysprosium

The principal heavy rare earth additive that keeps NdFeB magnets working at high temperature; the chain's scarcest widely-required input.

Facts on this page last re-verified Aug 11, 2026 — the oldest verification date among its current claims. How we verify.

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Linked materials

U.S. Geological Survey · published Jan 1, 2025 · retrieved Aug 11, 2026 · archive