http://znik.wbc.lublin.pl/Mineraly/promien...etnoIX2006.html
This address will lead you to the old uranium mine in Kletno (Poland). There are no more beautiful specimens to find now, but it had been a very popular place for Polish mineral collectioners and fans until recently. There appeared about 60 types of minerals on the slagheaps. Because of the recultivation of the old slagheaps, there appear not so many minerals. But there are still old underground excavations where I'm inviting you on a short trip.