Tm
Rare Earth Element High Criticality

Thulium

About Thulium

Thulium is the least abundant naturally occurring lanthanide rare earth element. When irradiated in a nuclear reactor, thulium-170 produces X-rays, enabling portable X-ray devices used in medical and industrial applications. Thulium lasers are used in minimally invasive surgery, and the element has applications in high-temperature superconductors and anti-counterfeiting technologies.

Primary Uses

Portable X-ray machines Laser materials High-temperature superconductors Anti-counterfeiting measures

Top Producing Countries

1 China
2 Myanmar
3 Australia

Quick Facts

Symbol
Tm
Atomic Number
69
Category
Rare Earth Element
Criticality Level
High
Supply Risk
High
Top Producer
China
USGS Critical List
Listed
EU CRM List
Listed

Return to the full Mineral Library to explore other critical and strategic minerals.