“pitchblende”的概念、定义、翻译、参考文献-科学参考

单词	pitchblende
释义	pitchblende [`pich´blend] ^MINERALOGY A massive, brown to black, and fine-grained, amorphous, or microcrystalline variety of uraninite which has a pitchy to dull luster and contains small quantities of uranium. Also known as nasturan; pitch ore.
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