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单词 monradite
释义

monraditen.

Brit. /ˈmɒnrədʌɪt/, U.S. /ˈmɑnrəˌdaɪt/
Origin: A borrowing from German. Etymon: German Monradit.
Etymology: < German Monradit (A. Erdmann 1842, in Vetenskaps. Acad. Handl. Stockh. 103) < the name of Dr Lars Monrad (1762–1836), Norwegian physician who discovered the mineral + -it -ite suffix1.
Mineralogy. Now historical.
A massive, granular, yellowish silicate of magnesium and iron found at Bergen in Norway (see quot. 1993).
ΚΠ
1846 Penny Cycl. Suppl. II. 308/2 Monradite occurs massive.
1852 H. J. Brooke & W. H. Miller Phillips's Elem. Introd. Mineral. (new ed.) 662 Monradite, cleavage in two directions, making with each other an angle of 50°, one distinct, the other indistinct.
1868 J. D. Dana Syst. Mineral. (ed. 5) 221 Monradite... Probably a slightly altered pyroxene or hornblende.
1993 A. M. Clark Hey's Mineral Index (ed. 3) 468/1 Monradite, near (Mg,Fe)SiO3.0.25H2O... Probably an altered pyroxene.
This entry has been updated (OED Third Edition, December 2002; most recently modified version published online March 2022).
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n.1846
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