Native uranium oxide, occurring as an amorphous or microcrystalline variety of uraninite in brown to black masses, and containing radium from the…
| 单词 | θ6750 |
| 释义 | the world > the earth > minerals > types of mineral > oxides and hydroxides > [noun] > rutile and uranite groups A02 > uraninite (4) pitchblende1770 Native uranium oxide, occurring as an amorphous or microcrystalline variety of uraninite in brown to black masses, and containing radium from the… uraninite1868 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… nivenite1889 = cleveite, n. pitch ore1896 (a) (more fully copper pitch ore) a dark brown ore of copper containing chrysocolla and limonite; also called pitchy copper ore; (b) = pitchblende, n.… |
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