Uraninite, also known as pitchblende, is a radioactive, uranium-rich mineral and ore with a chemical composition that is largely UO2 but because of oxidation...

naturally formed in supernova explosions. The primary uranium ore mineral is uraninite (UO2) (previously known as pitchblende). A range of other uranium minerals...

is now not regarded as a separate mineral species, but as a variety of uraninite. In 1903, large reserves of helium were found in natural gas fields in...

1898 from ore mined at Jáchymov. They extracted the radium compound from uraninite and published the discovery at the French Academy of Sciences five days...

Cleveite is an impure radioactive variety of uraninite containing uranium, found in Norway. It has the composition UO2 with about 10% of the uranium substituted...

and in hydrothermal vein type deposits. It occurs in association with uraninite, thorite, pyrite, marcasite, roscoelite, clay minerals and amorphous organic...

Yellowcake is hazardous when inhaled. Uranium ore deposits Uranium mining Uraninite, an ore that is mostly uranium dioxide (UO2) Yellowcake forgery, fraudulently...

fractures, joints, and minor faults within the Katanga synclinorium. Uraninite mineralization occurred 630 Ma ago, when uraniferous solutions percolated...

Marie and Pierre Curie in 1898. They extracted the radium compound from uraninite and published the discovery at the French Academy of Sciences five days...

several oxides: Uranium dioxide or uranium(IV) oxide (UO2, the mineral uraninite or pitchblende) Diuranium pentoxide or uranium(V) oxide (U2O5) Uranium...

ThO2. It was originally described by Ananda Coomaraswamy in 1904 as uraninite, but recognized as a new species by Wyndham R. Dunstan. It was so named...

radioactive, crystalline powder that naturally occurs in the mineral uraninite. It is used in nuclear fuel rods in nuclear reactors. A mixture of uranium...

radioactive elements could be a defining constituent, such as uranium in uraninite, autunite, and carnotite, or present as trace impurities, as in zircon...

and is commercially extracted from uranium-bearing minerals such as uraninite. Many contemporary uses of uranium exploit its unique nuclear properties...

asbestiform serpentine) Citrine (yellow variety of quartz) Cleveite (variety of uraninite) Clinochrysotile (polytype of chrysotile) Coltan (short for minerals of...

oxides, silicates, and hydrates of uranium, derived from the alteration of uraninite. It is named for its gum-like luster. The material has been known by various...

This sample of uraninite contains about 100,000 atoms (3.7×10−17 g) of francium-223 at any given time....

75–100 mol% ThO2; uranothorianite, 25–75 mol% ThO2; thorian uraninite, 15–25 mol% ThO2; uraninite, 0–15 mol% ThO2. At the time, the rare-earth elements, among...

Chromium, Uranium Ferric Hydroxide, Sulfide, Pyrite, Reduced Chromium, Uraninite Reductive Dehalogenation Halogen compound with electron donor Reduced...

sediments older than about 2 billion years contained grains of pyrite, uraninite, and siderite, all minerals containing reduced forms of iron or uranium...

This sample of uraninite contains about 100,000 atoms (3.3×10−20 g) of francium-223 at any given time....

parts per trillion, but may reach up to a few parts per million in some uraninite ore deposits. Because of its scarcity, high radioactivity, and high toxicity...

the gold is associated with other minerals, especially iron pyrite and uraninite, as well as carbon rich materials such as kerogen, or bitumen, which occurs...

U Nuclear fuel, ammunition, radiation shielding Pitchblende (UO2) in uraninite placer deposits; carnotite (K2(UO2)2(VO4)2 3H2O) in placer deposits Vanadium...

amounts of the yttrium earths. It is an alteration product of yttrian uraninite. It was first described by Adolf Erik Nordenskiöld, who discovered it...

is commonly associated with zircon, monazite, gadolinite, fergusonite, uraninite, yttrialite and pyrochlore. Thorite is currently an important ore of uranium...

and occur in reducing environments. Common uranous minerals include uraninite and coffinite. Hutchinson, R. W.; Blackwell, J. D. (1984). "Time, crustal...

Uca Uranosphaerite Us Ussingite Usg Uedaite-(Ce) Ued-Ce Umbrianite Ubn Uraninite Urn Uranospinite Usp Ustarasite Utr Uklonskovite Ukl Umohoite Umo Uranocircite-II...

containing natural uranium-bearing (U-238) ore samples (autunite, torbernite, uraninite, and carnotite from the "Colorado plateau region") Low-level radiation...

Uraninite ores have elevated concentrations of actinium....