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- Uraninite abstract "Uraninite is a radioactive, uranium-rich mineral and ore with a chemical composition that is largely UO2, but due to oxidation the mineral typically contains variable proportions of U3O8. Additionally, due to radioactive decay, the ore also contains oxides of lead and trace amounts of helium. It may also contain thorium, and rare earth elements. It used to be known as pitchblende (from pitch, because of its black color, and blende, a term used by German miners to denote minerals whose density suggested metal content, but whose exploitation, at the time they were named, was either unknown, impossible or not economically feasible). The mineral has been known at least since the 15th century from silver mines in the Ore Mountains, on the German/Czech border. The type locality is the town of Jáchymov, on the Czech side of the mountains, where F.E. Brückmann described the mineral in 1772. Pitchblende from the Johanngeorgenstadt deposit in Germany was used by M. Klaproth in 1789 to discover the element uranium.All uraninite minerals contain a small amount of radium as a radioactive decay product of uranium. Uraninite also always contains small amounts of the lead isotopes 206Pb and 207Pb, the end products of the decay series of the uranium isotopes 238U and 235U respectively. Small amounts of helium are also present in uraninite as a result of alpha decay. Helium was first found on Earth in uraninite after having been discovered spectroscopically in the Sun's atmosphere. The extremely rare elements technetium and promethium can be found in uraninite in very small quantities (about 200 pg/kg and 4 fg/kg respectively), produced by the spontaneous fission of uranium-238.".
- Uraninite thumbnail Pitchblende_schlema-alberoda.JPG?width=300.
- Uraninite wikiPageID "43532".
- Uraninite wikiPageLength "6222".
- Uraninite wikiPageOutDegree "74".
- Uraninite wikiPageRevisionID "673571366".
- Uraninite wikiPageWikiLink Alpha_decay.
- Uraninite wikiPageWikiLink Arizona.
- Uraninite wikiPageWikiLink Athabasca_Basin.
- Uraninite wikiPageWikiLink Botryoidal.
- Uraninite wikiPageWikiLink Canada.
- Uraninite wikiPageWikiLink Category:Cubic_minerals.
- Uraninite wikiPageWikiLink Category:Oxide_minerals.
- Uraninite wikiPageWikiLink Category:Radioactive_minerals.
- Uraninite wikiPageWikiLink Category:Uranium_minerals.
- Uraninite wikiPageWikiLink Charles_Steen.
- Uraninite wikiPageWikiLink Chemical_composition.
- Uraninite wikiPageWikiLink Colorado.
- Uraninite wikiPageWikiLink Connecticut.
- Uraninite wikiPageWikiLink Cubic_(crystal_system).
- Uraninite wikiPageWikiLink Cubic_crystal_system.
- Uraninite wikiPageWikiLink Czech_Republic.
- Uraninite wikiPageWikiLink Democratic_Republic_of_the_Congo.
- Uraninite wikiPageWikiLink Femtogram.
- Uraninite wikiPageWikiLink Germany.
- Uraninite wikiPageWikiLink Great_Bear_Lake.
- Uraninite wikiPageWikiLink H-M_symbol.
- Uraninite wikiPageWikiLink Helium.
- Uraninite wikiPageWikiLink Hermann–Mauguin_notation.
- Uraninite wikiPageWikiLink Isotope.
- Uraninite wikiPageWikiLink Johanngeorgenstadt.
- Uraninite wikiPageWikiLink Jáchymov.
- Uraninite wikiPageWikiLink Kilogram.
- Uraninite wikiPageWikiLink Lead.
- Uraninite wikiPageWikiLink List_of_minerals.
- Uraninite wikiPageWikiLink List_of_uranium_mines.
- Uraninite wikiPageWikiLink List_of_uranium_projects.
- Uraninite wikiPageWikiLink Maine.
- Uraninite wikiPageWikiLink Manhattan_Project.
- Uraninite wikiPageWikiLink Martin_Heinrich_Klaproth.
- Uraninite wikiPageWikiLink Mineral.
- Uraninite wikiPageWikiLink Moab,_Utah.
- Uraninite wikiPageWikiLink New_Hampshire.
- Uraninite wikiPageWikiLink New_Mexico.
- Uraninite wikiPageWikiLink North_Carolina.
- Uraninite wikiPageWikiLink Northwest_Territories.
- Uraninite wikiPageWikiLink Nuclear_fission.
- Uraninite wikiPageWikiLink Orders_of_magnitude_(mass).
- Uraninite wikiPageWikiLink Ore.
- Uraninite wikiPageWikiLink Ore_Mountains.
- Uraninite wikiPageWikiLink Oxidation.
- Uraninite wikiPageWikiLink Oxide.
- Uraninite wikiPageWikiLink Oxide_minerals.
- Uraninite wikiPageWikiLink Promethium.
- Uraninite wikiPageWikiLink Radioactive.
- Uraninite wikiPageWikiLink Radioactive_decay.
- Uraninite wikiPageWikiLink Radium.
- Uraninite wikiPageWikiLink Rare_earth_element.
- Uraninite wikiPageWikiLink Rare_earth_elements.
- Uraninite wikiPageWikiLink Redox.
- Uraninite wikiPageWikiLink Rwanda.
- Uraninite wikiPageWikiLink Saskatchewan.
- Uraninite wikiPageWikiLink Shinkolobwe.
- Uraninite wikiPageWikiLink Silver.
- Uraninite wikiPageWikiLink Space_group.
- Uraninite wikiPageWikiLink Spectroscopy.
- Uraninite wikiPageWikiLink Sun.
- Uraninite wikiPageWikiLink Technetium.
- Uraninite wikiPageWikiLink Thorianite.
- Uraninite wikiPageWikiLink Thorium.
- Uraninite wikiPageWikiLink Type_locality_(geology).
- Uraninite wikiPageWikiLink Uranium.
- Uraninite wikiPageWikiLink Uranium(IV)_oxide.
- Uraninite wikiPageWikiLink Uranium-238.
- Uraninite wikiPageWikiLink Uranium_dioxide.
- Uraninite wikiPageWikiLink Uranium_ore.
- Uraninite wikiPageWikiLink Uranium_ore_deposits.
- Uraninite wikiPageWikiLink Wyoming.
- Uraninite wikiPageWikiLink Yellowcake.
- Uraninite wikiPageWikiLink File:Uraninite-usa32abg.jpg.
- Uraninite wikiPageWikiLinkText "Pitchblende".
- Uraninite wikiPageWikiLinkText "Uraninite".
- Uraninite wikiPageWikiLinkText "Uranium ore".
- Uraninite wikiPageWikiLinkText "pitchblende".
- Uraninite wikiPageWikiLinkText "uraninite ores".
- Uraninite wikiPageWikiLinkText "uraninite".
- Uraninite wikiPageWikiLinkText "uranium ore".
- Uraninite caption "Pitchblende from Niederschlema-Alberoda deposit, Germany".
- Uraninite category Oxide_minerals.
- Uraninite cleavage "Indistinct".
- Uraninite color "Steel-black to velvet-black, brownish black, pale gray to pale green; in transmitted light, pale green, pale yellow to deep brown".
- Uraninite diaphaneity "Opaque; transparent in thin fragments".
- Uraninite formula "Uranium dioxide or uranium(IV) oxide".
- Uraninite fracture "Conchoidal to uneven".
- Uraninite gravity "10.63".
- Uraninite habit "Massive, botryoidal, granular. Octahedral crystals uncommon.".
- Uraninite hasPhotoCollection Uraninite.
- Uraninite luster "Submetallic, greasy, dull".
- Uraninite mohs "5".
- Uraninite name "Uraninite".