Answer:
Uranium has no uses at home; sometimes very beautiful glassware are colored with uranium compounds.
It is not uncommon for stoneware that is manufactured in the third world to contain radioactive compounds such as uranium or uranium oxides. The only way to be certain of this is to pass a Geiger counter over them, or to place them in close proximity to undeveloped film and have the film developed; if the photos come out black or smuged, the stoneware is emitting radioactivity.