| 单词 | uraninite |
| 例句 | Uranium is soluble in oxidizing groundwater environments and precipitates as uraninite when reducing conditions are encountered. An Introduction to Geology 2017-01-01T00:00:00Z H. Miers drew Ramsay’s attention to the work of W. F. Hillebrand, who had noticed, in examining the mineral uraninite, that an inert gas was evolved when the mineral was decomposed with acid. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z On the occurrence of nitrogen in uraninite, and on the composition of uraninite in general. 38pp. United States Government Publications, v. 8 Jan-Jun 1892 A Monthly Catalog 2011-06-22T02:00:25.153Z There were two other mines that produced the same uraninite ore as the one at which Hanlon was stationed. Man of Many Minds In 1896 Ramsay at last succeeded in separating helium, recognized by the same yellow line in its spectrum, in minute quantities from the mineral uraninite. The New Heavens Pitchblende or uraninite is an intensely black mineral of a specific gravity of 9.5 and is found in commercial quantities in Bohemia, Cornwall in England and some other localities. Marvels of Modern Science |
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