This kind of ore should be rare (maybe from meteorites?), dangerous (radioactive?), but potentially very useful in a world where people have augmented abilities, cybernetic attachments, that sort of thing.
It could also be used to enhance machinery, vehicles, even weapons.
Seems like Astatine could come close to this. Like an Astatine infused meteoric ore? Chemistry is not my strong suit, help would be greatly appreciated with this one. Thank you in advance.