Primary Uses
Green phosphors, Magnetostrictive alloys (e.g., T-b-D), Sensors
Scarcity & Economic Profile
Crustal Abundance
0.9-1.1 ppm
Primary Economic Driver
Green phosphors & magnets
Geological Scarcity
Supply Risk
Sources - Crustal Abundance
- Rudnick, R. L., & Gao, S. (2003). Composition of the Continental Crust. Treatise on Geochemistry, 3, 1-64.
- Taylor, S. R., & McLennan, S. M. (1985). The Continental Crust: Its Composition and Evolution. Blackwell Scientific Publications.
- Wedepohl, K. H. (1995). The composition of the continental crust. Geochimica et Cosmochimica Acta, 59(7), 1217-1232.
- U.S. Geological Survey. (2026). Mineral Commodity Summaries 2026. U.S. Department of the Interior.
Short Description
Terbium is used for green phosphors and to improve temperature coefficients in magnet alloys; it is also important in magnetostrictive materials used in sensors and actuators.
Found In
- Terbium Metal - 100%
- Terbium Oxide - 100%
Found In Ore Types
Mining Projects
Projects targeting ore types that contain Tb.
Policy & Regulatory Updates
7 articles mentioning Terbium — showing 5 most recent
May 2026
The Northern Anchor: Japan and Australia Formalise the A$1.67B Critical Minerals Corridor
Japanese PM Sanae Takaichi and Australian PM Anthony Albanese have signed the 2026 Elevated Critical Minerals Cooperation Agreement in Perth, earmarking A$1.3 billion from Australia's Critical Minerals Facility and A$370 million from Japan's JOGMEC to protect the West's primary rare earth pipeline - including a first-ever non-Chinese production of Dysprosium and Terbium at commercial-ready grade.
Apr 2026
The Arctic Shield: Why Critical Metals Corp Just Consolidated Tanbreez
Critical Metals Corp (Nasdaq: CRML) has officially consolidated 100% ownership of the Tanbreez project in Greenland by merging with European Lithium, backed by a $120 million EXIM LOI. The move transforms Tanbreez from a frontier asset into a central pillar of the US-led Mineral Security Partnership, targeting first ore by Q4 2028.
Apr 2026
The $2.8B Serra Verde Merger: Building the Western "Champion"
USA Rare Earth (Nasdaq: USAR) has announced a definitive $2.8 billion agreement to acquire Brazil's Serra Verde Group, creating the West's first vertically integrated "Mine-to-Magnet" champion - combining the Pela Ema ionic clay mine with downstream magnet manufacturing in Oklahoma.
Apr 2026
The Invisible Wall: Decoding China's 2026 Licensing Regime
China's updated Export Licensing Management Goods Catalogue reached full implementation on April 4, 2026, moving mid-to-heavy rare earth elements into a restrictive, case-by-case licensing regime - and a suspended "0.1% Rule" that threatens to ensnare foreign-made goods containing Chinese-origin rare earths expires November 10, 2026.
Apr 2026
The Caremag Protocol: France and Japan Bridge the Heavy Rare Earth Gap
France and Japan have formalised a Critical Minerals Roadmap anchored by Caremag - the first industrial-scale heavy rare earth separation facility outside China, located in Lacq, France. Japan has secured a 20% offtake of Dysprosium and Terbium oxides, while USA Rare Earth will supply feedstock from Texas, creating a Triangular Corridor for HRE supply.