Uraninite - Wikipedia
网页Uraninite, also known as pitchblende, is a radioactive, uranium-rich mineral and ore with a chemical composition that is largely UO 2 but because of oxidation typically contains variable proportions of U 3 O 8. Radioactive decay of the uranium causes the mineral to contain oxides of lead and trace amounts of helium.
Pitchblende | Radioactive, Uranium, Thorium | Britannica
网页Pitchblende, amorphous, black, pitchy form of the crystalline uranium oxide mineral uraninite (q.v.); it is one of the primary mineral ores of uranium, containing 50–80 percent of that element. Three chemical elements were first discovered in pitchblende: uranium by the German chemist Martin.
What Is Pitchblende? (Uraninite) - ThoughtCo
网页2019年2月5日 · Pitchblende, also known by the name uraninite, is a mineral comprised mainly of oxides of the element uranium, UO 2, and UO 3. It is the primary ore of uranium. The mineral is black in color, like 'pitch'. The term 'blende' came from the German miners who believed it contained many different metals all blended together.
Uraninite: A radioactive mineral and ore of uranium - Geology.com
网页Uraninite, also known as pitchblende, is a radioactive mineral and the most important ore of uranium. We have uraninite photos, physical properties, and information about geologic occurrence, alteration products, and the role of …
Pitchblende - Simple English Wikipedia, the free encyclopedia
网页Pitchblende is a radioactive, uranium-rich mineral and ore. It has a chemical composition that is largely UO 2, but also contains UO 3 and oxides of lead, thorium, and rare earth elements. It is known as pitchblende due to its black color and high density. It is also commonly referred to as Uraninite.
Uraninite | Radioactive Ore, Uranium Ore, Mineral | Britannica
网页Uraninite usually forms black, gray, or brown crystals that are moderately hard and generally opaque. A variety of uraninite ore that is dense and found in granular masses with a greasy lustre is called pitchblende. Uraninite is …
Pitchblende: Mineral information, data and localities. - mindat.org
网页In-situ mineral chemistry and chronology analyses of the pitchblende in the Shazijiang uranium deposit and their implications for mineralization. Acta Petrologica Sinica, 35(9), 2679-2694. ⓘ Xiangyangping U-W deposit
Pitchblende - Materials101
网页2024年9月13日 · Pitchblende, also known as Uraninite, an oxide mineral of Uranium comprising of UO2, UO3.It is the primary ore for Uranium and is pitch black in color. The word “blende” was coined by a German miner who believed it was material with a couple of metals all blended together.
pitchblende - Infoplease
网页pitchblende pĭchˈblĕndˌ [key], dark, lustrous, heavy mineral, a source of radium and uranium. Largely natural uranium oxides, triuranium octaoxide (U 3 O 8) and uranium dioxide (UO 2), it usually contains some lead and variable amounts of …
Uranium Behavior in the Process of Primary Pitchblende Ores …
网页2009年11月20日 · Two key factors led to the present investigation of the uranium ore bodies of the Streltsovskoye ore field as a natural analog of an SNF repository: (i) the primary uranium ores of the deposits are mainly composed of pitchblende, which has similar properties to SNF uraninite; and (ii) the geological setting of the ore deposits provided for the ...