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- Uraninite
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Pitchblende Definition & Meaning - Merriam-Webster
The meaning of PITCHBLENDE is a brown to black mineral that consists of massive uraninite, has a distinctive luster, contains radium, and is the chief ore-mineral source of uranium.
Uraninite - Wikipedia
Uraninite used to be known as pitchblende (from pitch, because of its black color, and blende, from blenden meaning "to deceive", 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 or not economically feasible). The mineral has been known since at least the 15th century, from silver mines in the Ore Mountains, on the German/Czech border. The type locality i…
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What Is Pitchblende? (Uraninite) - ThoughtCo
Feb 5, 2019 · What is pitchblende and what does it have to do with uranium? 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 …
PITCHBLENDE definition and meaning | Collins English Dictionary
Pitchblende is a blackish mineral that is a type of uraninite and contains uranium and radium. Learn about its origin, synonyms, pronunciation, examples and word lists from Collins English …
Pitchblende | Radioactive, Uranium, Thorium | Britannica
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.
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Pitchblende - Simple English Wikipedia, the free …
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 …
Pitchblende - Definition, Meaning & Synonyms - Vocabulary.com
5 days ago · a mineral consisting of uranium oxide and trace amounts of radium and thorium and polonium and lead and helium; uraninite in massive form is called pitchblende which is the …
Pitchblende Definition & Meaning - YourDictionary
A brown to black, radioactive, massive form of uraninite: pitchblende is the chief ore of uranium and radium. From German Pechblende, from Pech (“pitch" ) + Blende (“blende" ). To extract …
PITCHBLENDE definition in American English - Collins Online …
a brown to black, radioactive, massive form of uraninite: pitchblende is the chief ore of uranium and radium
PITCHBLENDE Definition & Meaning | Dictionary.com
a massive variety of uraninite, occurring in black pitchlike masses: a major ore of uranium and radium. a blackish mineral that is a type of uraninite and occurs in veins, frequently associated …
Uraninite: A radioactive mineral and ore of uranium
Uraninite is a uranium oxide mineral and the most important ore of uranium. It is also known as pitchblende, an archaic name that was used for uraninite and other black materials with a very high specific gravity.
pitchblende, n. meanings, etymology and more - Oxford English …
What does the noun pitchblende mean? There is one meaning in OED's entry for the noun pitchblende . See ‘Meaning & use’ for definition, usage, and quotation evidence.
Pitchblende - definition of pitchblende by The Free Dictionary
Pitchblende is a blackish mineral that is a type of uraninite and a major ore of uranium and radium. It is highly radioactive and has a formula of UO2. See translations, thesaurus, and …
PITCHBLENDE - Meaning & Translations | Collins English …
Definitions of 'pitchblende' a blackish mineral that is a type of uraninite and occurs in veins, frequently associated with silver: the principal source of uranium and radium. Formula: UO 2
pitchblende - Infoplease
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 …
Pitchblende - Encyclopedia.com
May 23, 2018 · pitchblende (pĬch´blĕnd´), dark, lustrous, heavy mineral, a source of radium and uranium. Largely natural uranium oxides, triuranium octaoxide (U3O8) and uranium dioxide …
What does pitchblende mean? - Definitions.net
Pitchblende, also known as uraninite, is a radioactive, dark-colored mineral that is the chief source of uranium and radium. It often occurs in coarse-grained igneous rocks and pegmatites, and …
pitchblende | meaning of pitchblende in Longman Dictionary of ...
pitchblende meaning, definition, what is pitchblende: a dark shiny substance dug from the eart...: Learn more.
Pitchblende - Materials101
2 days ago · Let’s learn about what is pitchblende and what does it mean to Uranium? Pitchblende, also known as Uraninite, an oxide mineral of Uranium comprising of UO2, UO3.It …
pitchblende | Definition from the Earth sciences topic | Earth …
From Longman Dictionary of Contemporary English pitch‧blende /ˈpɪtʃblend/ noun [uncountable] a dark shiny substance dug from the earth, from which uranium and radium are obtained …
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