I had several uranium minerals in my balcony for several years and never give a thought about it. My father is a geologist and was a professor in the university, so rock and minerals in my home is almost like to kick a package and out comes some mineral or rock (any form, any type). So, a few uranium minerals were left forgotten in a vase in one of the balconies.
I should had sold then to some one, at least it would had rendered something, instead of going rotten and to the trash!