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.

Uraninite is a uranium oxide mineral and the most important ore of uranium. It received its name from its uranium content. Uraninite is highly radioactive and should be handled and stored with care. It is not a suitable mineral for classroom use.

uraninite, a major ore mineral of uranium, uranium dioxide (UO 2). 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 radioactive and is the chief source of uranium.

2023年5月18日 · Uraninite is a mineral that is primarily composed of uranium oxide. It is a significant ore of uranium, which is an important element used for nuclear power generation and in the production of nuclear weapons. Uraninite is known for its distinctive black color and high uranium content.

铀云母是一类自然界分布很广的 铀矿石 的统称，为含有不同 结合水分 子的六价铀 (以铀酰离子形态存在)的 磷酸盐 、 砷酸盐 和 钒酸盐 矿物。 化学成分R (UO2)2· (MO4)2·nH2O，其中 R为钙、铜、铁、钡和钾，M为磷、钒、砷。 铀 含量55～60%。 常见矿物有 铜铀云母 和钙 铀云母两种。 前者化学成分为Cu [UO2]2 [PO4]2·12H2O；后者为Ca [UO2]2 [PO4]2 ·10～12H2O。 [1] 一 种重要的 次生铀矿物。 存在于原生铀矿床的氧化带中。 大部分铀云母矿物呈黄色或黄绿色，含铜 …

uraninite，英语单词，主要用作名词，作名词时译为“ [矿物] 沥青铀矿 ”。 [1] 1.N a blackish heavy radioactive mineral consisting of uranium oxide in cubic crystalline form together with radium, …

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.

研究结果表明：研究区中侏罗统直罗组下段砂岩以长石岩屑砂岩和岩屑长石砂岩为主，成分成熟度和结构成熟度较低，具有近物源沉积的特点。 电子探针分析结果表明，铀矿物主要以沥青铀矿、铀石及少量的钛铀矿、含钛铀矿为主。 背散射图像显示铀矿多与黄铁矿及有机质矿物共同分布，表明黄铁矿及有机质矿物为铀矿物的形成提供了还原剂。 成岩过程中溶蚀作用及后生蚀变现象的发育，为铀的富集沉淀提供了有利条件。 观察含矿目的层砂岩中的蚀变现象及蚀变矿物特征，表 …

Define uranite. uranite synonyms, uranite pronunciation, uranite translation, English dictionary definition of uranite. n any of various minerals containing uranium, esp torbernite or autunite uranitic adj Collins English Dictionary – Complete and Unabridged, 12th Edition...

Uraninite is a strongly radioactive mineral found in pegmatites, high temperature hydrothermal veins, and lower temperature ground water precipitates in reduced sedimentary environments and along unconformities. It is often altered to and intergrown with a …