kceaton1 said:

Uranium 238 should be pretty safe to touch and carry, in small amounts (I don't know at what size it becomes truly dangerous to the site exposed, especially if left there for any long length of time; I'd guess anything below one pound should be perfectly fine, but for all I know it could be 30 pounds).

You just cannot do this: do not swallow or inhale any of it. Also, if it has very sharp and jagged edges and it cuts you--then a tiny piece gets into your body (then the bloodstream), same problem.

But, at least this version of Uranium isn't too hazardous, but you certainly could poison someone with it. The heavier Isotopes created from Uranium are much more dangerous (I'm sure many are aware of this); like Plutonium (made in the natural environment if nuclear reactions are going on nearby, like a Star).

We created quite a bit of Plutonium back in the day using Uranium (more specifically we used Uranium and Deuterons; Deuterons are gathered from Deuterium, which is "Heavy Hydrogen"; the Deuteron is the nucleus of a Deuterium atom).