Thulium

Occurrence, isolation & synthesis


Thulium is a silvery-white metal, that is easily worked [4].

Occurrence


In nature, thulium is found in the Earth's crust, 0.2-0.5 ppm, in euxenite, ytterspar, sipylite,gadolinite, and other rare earth minerals [4]. The isotope found in nature is 169Tm (100 %, stable) [4].