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单词 θ6417
释义
the world > the earth > minerals > ore > [noun] > metal ore > uranium ore (5)
pitchblende1770

Native uranium oxide, occurring as an amorphous or microcrystalline variety of uraninite in brown to black masses, and containing radium from the…

medjidite1848

A poorly characterized uranium mineral, possibly a uranium sulphate, first found near Adrianople (now Edirne), north-west Turkey.

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…

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.

Subcategories:

— oxide of uranium (1)
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更新时间:2024/11/11 4:07:35