One day I added plutonium to polonium. It melted down and I cooled it, and removed all the powders. However, I found gold, titanium, quartz, rock and some other weird stuff. (You can see it in save No. 2939323) I think that polonium doesn't work, though. If you're good at nuclear physics, please tell me.
it is not nuclear physics devs just wanted make fission more funni and added stone as waste from nuclear fission of plutonium and if ur thing is like a nuclear bomb but closed then stone turned into rock and started somehow fusion of stone untill u got gold titanium quartz and maybe tungensten more plutonium more uranium and other things