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naumannite

American  
[naw-muh-nahyt, nou-] / ˈnɔ məˌnaɪt, ˈnaʊ- /

noun

  1. a mineral, silver-lead selenide, (Ag 2 Pb)Se, usually occurring in iron-black cubic crystals.

Etymology

Origin of naumannite

1840–50; after Karl F. Naumann, (1797–1873), German mineralogist; see -ite 1

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.