uraniniten.

Brit.

/jᵿˈranᵻnʌɪt/, U.S.

/jʊˈrænəˌnaɪt/

Origin: A borrowing from German, combined with an English element. Etymons: German Uranin , -ite suffix¹.

Etymology: < German Uranin pitchblende ( W. Haidinger Handb. der bestimmenden Mineral. (1845) 549; < Uranium uranium n. + -in -ine suffix⁵) + -ite suffix¹; introduced by J. D. Dana (see quot. 1868).

Mineralogy.

A black or brownish-black mineral which is the chief ore of uranium and occurs typically as cubic or octahedral crystals or in rounded or other massive forms. Cf. pitchblende n.Uraninite consists of uranium dioxide, UO₂, usually with impurities (esp. lead, thorium, and radium). Crystal system: cubic.

ΘΚΠ

the world > the earth > minerals > ore > [noun] > metal ore > uranium ore

pitchblende1770

medjidite1848

uraninite1868

pitch ore1896

the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > rutile and uranite groups A02 > uraninite

pitchblende1770

uraninite1868

nivenite1889

pitch ore1896

1868 J. D. Dana Syst. Mineral. (ed. 5) 154 Uraninite... Isometric... Usually massive and botryoidal; also in grains.

1897 L. Fletcher Introd. Study Mineral. 89 Uraninite, or Pitchblende, consists almost entirely of oxygen and uranium.

1957 Financial Times Ann. Rev. Brit. Industry 39/1 The mineral uraninite (and its less well-crystallised variant pitch-blende)..is still the most important uranium ore.

1978 Sci. Amer. Sept. 99/1 Uraninite..is found in several deposits that were laid down in Precambrian streambeds.

2003 Guardian 16 Oct. (Life section) 7/1 Uraninite stays put instead of mixing with water used for drinking or irrigation.

This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022).

单词	uraninite
释义	uraniniten. Brit. /jᵿˈranᵻnʌɪt/, U.S. /jʊˈrænəˌnaɪt/ Origin: A borrowing from German, combined with an English element. Etymons: German Uranin , -ite suffix¹. Etymology: < German Uranin pitchblende ( W. Haidinger Handb. der bestimmenden Mineral. (1845) 549; < Uranium uranium n. + -in -ine suffix⁵) + -ite suffix¹; introduced by J. D. Dana (see quot. 1868). Mineralogy. A black or brownish-black mineral which is the chief ore of uranium and occurs typically as cubic or octahedral crystals or in rounded or other massive forms. Cf. pitchblende n.Uraninite consists of uranium dioxide, UO₂, usually with impurities (esp. lead, thorium, and radium). Crystal system: cubic. ΘΚΠ the world > the earth > minerals > ore > [noun] > metal ore > uranium ore pitchblende1770 medjidite1848 uraninite1868 pitch ore1896 the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > rutile and uranite groups A02 > uraninite pitchblende1770 uraninite1868 nivenite1889 pitch ore1896 1868 J. D. Dana Syst. Mineral. (ed. 5) 154 Uraninite... Isometric... Usually massive and botryoidal; also in grains. 1897 L. Fletcher Introd. Study Mineral. 89 Uraninite, or Pitchblende, consists almost entirely of oxygen and uranium. 1957 Financial Times Ann. Rev. Brit. Industry 39/1 The mineral uraninite (and its less well-crystallised variant pitch-blende)..is still the most important uranium ore. 1978 Sci. Amer. Sept. 99/1 Uraninite..is found in several deposits that were laid down in Precambrian streambeds. 2003 Guardian 16 Oct. (Life section) 7/1 Uraninite stays put instead of mixing with water used for drinking or irrigation. This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022). < n.1868
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