Improved coercivity in selected permanent-magnet formulations
65TbHeavy rare earth
Rare-earth element 65
Terbium
Can help selected magnets retain performance under heat and enables green phosphors and responsive materials.
Reported MREO basketWhy it is used
The properties behind terbium applications.
Green luminescence and magnetostrictive response
Typical applications
Where terbium is commonly used.
Selected high-coercivity permanent-magnet formulations
Green phosphors for displays and lighting
Magnetostrictive sensors and actuators
Applications refer to suitable rare-earth materials, compounds or produced isotopes—not raw mineral material. Product designs and formulations vary.
Connected technologies
What the element does inside a system.
Route to use
A head assay is several steps from an industrial material.
- 01Mineral-bearing material
Geology and assays establish occurrence and distribution.
- 02Recovery and separation
Testwork must establish what can be mobilised, recovered and purified.
- 03Application-grade material
Oxides, metals, alloys or compounds must meet a controlled specification.
- 04Component or system
Manufacturers design the material into a qualified product.
At Minas Americas
One of four elements at the centre of the project’s strategic focus.
Reported MREO basket
Terbium oxide forms part of the disclosed MREO sum at Minas Americas. Terbium can support coercivity and high-temperature performance in selected magnet formulations. That analytical definition does not establish recovery, separation or a saleable product.
See the magnet-basket evidence →Sources
Where the element and application information comes from.
Applications are representative rather than exhaustive. They describe industry uses of rare-earth materials, compounds or produced isotopes; they do not describe a product currently made by Magnes or establish that an element will be commercially recovered from Minas Americas.
- U.S. Geological Survey · Selected applications by element
- USGS · 2026 Rare Earths Mineral Commodity Summary
- USGS · 2026 Heavy Rare Earths summary · Scandium · Yttrium
- U.S. Department of Energy · Critical materials and applications
- International Energy Agency · Magnet rare earths and energy technologies
- Oak Ridge National Laboratory · Promethium context
- U.S. FDA · MRI and regulated contrast context · Lutetium-177 therapy context
- Magnes · Technical disclosure and claims boundary