KnowraPitchblendeLinked fromLinked fromThe 6 pages that link to Pitchblende, each with the reason it gives.All 6Broader topic 1Related 5Marie CurieRelated: Its unexpectedly strong emissions led the Curies to infer that it contained unknown radioactive substances.UraniumRelated: Klaproth identified uranium in pitchblende, a principal historical ore.Pierre CurieRelated: Its radioactivity exceeded that of its uranium content, pointing the Curies toward undiscovered substances.RadiumRelated: Its radioactivity led the Curies to seek the substances later named radium and polonium.PoloniumRelated: The Curies found evidence of polonium while examining pitchblende residues.