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pitch-blende

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Uraninite - Wikipedia
Uraninite, also known as pitchblende, is a radioactive, uranium-rich mineral and ore with a chemical composition that is largely UO2 but because of ... en.wikipedia.org
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Pitchblende | Radioactive, Uranium, Thorium - Britannica
Pitchblende, amorphous, black, pitchy form of the crystalline uranium oxide mineral uraninite (qv); it is one of the primary mineral ores of uranium. www.britannica.com
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What Is Pitchblende? (Uraninite) - ThoughtCo
Chemical Composition of Pitchblende. A closeup photograph of a piece of pitchblende, or uraninite. A closeup photograph of a piece of ... www.thoughtco.com
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pitch-blende
pitch-blende Min. (ˈpɪtʃblɛnd) [ad. Ger. pechblende (Cronstedt, 1758), f. pech pitch n.1: see blende.] Native oxide of uranium, found in blackish pitch-like masses, more rarely crystalline; also called uraninite.1770 tr. Cronstedt's Min. 217 Pechblende or Pitch Blende of the Germans. 1794 Hutchinson... Oxford English Dictionary
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Pitchblende: Mineral information, data and localities.
Formula: UO 2. Colour: Black, Brownish-black. Lustre: Dull. A massive, often globular, possibly impure, variety of Uraninite. www.mindat.org
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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 ... www.merriam-webster.com
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Pitchblende - Simple English Wikipedia, the free encyclopedia
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. simple.wikipedia.org
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[PDF] Page 1 of 12 SAFETY DATA SHEET PITCHBLENDE ORE - SILICA ...
Pitchblende is a naturally occurring radioactive material. It is the principal ore source for uranium, which occurs in it as uranium oxide, U3O8. Hazards ... www.energy.gov
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[PDF] Uraninite and pitchblende - Mineralogical Society of America
Uraninite is crystalline, with higher specific gravity and lower water content, while pitchblende is massive, with lower specific gravity and higher water ... msaweb.org
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Pitchblende uranium ore? : r/Radioactive_Rocks - Reddit
Pitchblende in visible amounts would result in radiation levels X00 uSv/h, these radiation levels are still pretty low. Also pitchblende weathers very easily. www.reddit.com
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pitch
▪ I. pitch, n.1 (pɪtʃ) Forms: 1–2 pic; 2–5 pich, 3–6 pych, (3 pisch), 4–5 pycche, picche, 4–6 pyche, (5 peche), 5–6 piche, pytch(e, pitche, 6– pitch. β. (northern) 3–6 pik, 4 pic, pike, 4–5 pyke, pikke, 4–6 pyk, pyck, 5 picke, pikk, pykk(e, 6–7 (8–9 dial.) pick. [OE. pic, ad. L. pix, pic-em (whence ... Oxford English Dictionary
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Clayton Eshleman
A Pitch-blende (Berkeley, CA: Maya Quarto, 1969). 11 pages. The House of Ibuki (Freemont, MI: Sumac Press, 1969). 49 pages. wikipedia.org
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晶质铀矿
概述 晶质铀矿曾被称为沥青铀矿（，「pitch」意为「沥青」，因为其黑色；「blende」来源于「blender」，意为「欺骗」），至少自15世纪以来，这种矿物就在德国和捷克边境的厄尔士山脉中的银矿中为人所知。 wikipedia.org
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