stephanite

[ stef-uh-nahyt ]
/ ˈstɛf əˌnaɪt /
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noun

a mineral, silver antimony sulfide, Ag5SbS4: an ore of silver.

Origin of stephanite

1840–50; named after Stephan, Archduke of Austria (died 1867); see -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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