Element · La · atomic number 57

Lanthanum

A high-volume light rare earth co-product used in catalysts, batteries, and optical glass; like cerium, it shapes chain economics as low-priced ballast.

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

This thin stub links to material/product records; it is not a property table.

Linked materials

Rare Earth Ore
Bastnaesite Concentrate
Monazite Concentrate
Mixed Rare Earth Carbonate

Sources

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