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单词 nagyagite
释义

nagyagiten.

Brit. /ˈnadʒəɡʌɪt/, /ˈnaɡjəɡʌɪt/, /ˈnɒdʒəɡʌɪt/, U.S. /ˈnædʒəˌɡaɪt/, /ˈnæɡjəˌɡaɪt/, /ˈnɑdʒəˌɡaɪt/
Origin: A borrowing from German. Etymon: German Nagyagit.
Etymology: < German Nagyagit (W. Haidinger Handb. der bestimmenden Min. (1845) 566) < Nagyág , the name of the mineral's locality (formerly in Hungary, now Săcărîmbu in Transylvania, Romania) + -it -ite suffix1. Compare earlier German Nagiakererz (attributed to A. G. Werner by C. A. S. Hoffmann 1789, in Bergmännisches Jrnl. 1 381, reporting usage of A. G. Werner).
Mineralogy.
A monoclinic (pseudotetragonal) telluride, antimonide, and sulphide of lead and gold, occurring as dark grey tabular crystals.
ΘΚΠ
the world > the earth > minerals > types of mineral > sulphides and related minerals > [noun] > galena group > lead telluride
black tellurium1821
tellurium glance1821
nagyagite1849
1849 J. Nicol Man. Mineral. 476 Nagyagite..in the open tube emits sulphurous acid.
1882 J. D. Dana Mineral. (ed. 4) 149 Nagyagite, or Foliated tellurium, is..foliated like graphite.
1923 H. H. Read Rutley's Elem. Mineral. (ed. 21) ii. 376 Nagyagite: Black Tellurium. Comp.—Telluride and sulphide of gold and lead.
1965 G. J. Williams Econ. Geol. N.Z. viii. 96/1 He also reported nagyagite from Sylvia mine.
1999 Amer. Mineralogist 84 669 Synthetic nagyagite was grown from a melt as part of a search for materials with high-temperature superconductivity.
This entry has been updated (OED Third Edition, June 2003; most recently modified version published online March 2022).
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n.1849
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