Anyone know of a source of bulk (e.g. 20kg) uranium ore like United Nuclear used to sell? I always wanted to refine some when I was a teenager but by the time I

Anyone know of a source of bulk (e.g. 20kg) uranium ore like United Nuclear used to sell? I always wanted to refine some when I was a teenager but by the time I actually had a way to spend money online they were sold out for good.