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单词 jeffersonite
释义 jeffersonite Min.|ˈdʒɛfəsənaɪt|
[Named 1822, after President Jefferson: see prec. and -ite.]
A greenish-black variety of pyroxene, containing some zinc and manganese.
1822Amer. Jrnl. Sc. V. 402 Jeffersonite..has a great resemblance to pyroxene.1852Shepard Min. 199 Jeffersonite..abounds in iron and manganese.
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更新时间:2024/11/5 14:43:18