Uranium Squeeze, page-14

You might want to invest in some lead gloves first...

Its actually not that bad.

Radioactivity of Yellowcake – Radioactivity of Uranium
Since yellowcake is a highly concentrated uranium powder, it must be somehow radioactive. Due to the fact, the uranium in yellowcake is almost exclusively (>99%) uranium 238 with long half-life, its specific activity is very low. 238U decays via alpha decay to 234Th with half-life of ~4.5×109 years. 238U occasionally decays by spontaneous fission with probability of 0.000055%. Its specific activity is very low ~3.4×10-7 Ci/g. Due to chemical leaching, yellowcake contains almost no descendants of radioactive cascades, that have been in radioactive equilibrium for millions of years. These radioactive descendants are separated and are disposed in uranium tailings. Therefore, pure uranium-238 is weakly radioactive (proportional to its long half-life), but a uranium ore is about 13 times more radioactive than the pure uranium-238 metal because of its daughter isotopes (e.g. radon, radium etc.) that it contains. Yellowcake is as radiologically harmless as natural potassium-carrying minerals or thorium-oxide mantles used in paraffin fuel lanterns.