@inex @LangerJan @AmyZenunim “Natural thorium decays very slowly compared to many other radioactive materials, and the emitted alpha radiation cannot penetrate human skin. As a result, handling small amounts of thorium, such as those in gas mantles, is considered safe, although the use of such items may pose some risks.”
https://en.m.wikipedia.org/wiki/Thorium
Hopefully everyone’s ok.