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jamesonite

[ jeym-suh-nahyt ]
/ ˈdʒeɪm səˌnaɪt /
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noun
a metallic, dark-gray mineral, lead and iron antimony sulfide: formerly mined for lead.
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Origin of jamesonite

1815–25; named after Robert Jameson (1774–1854), Scottish scientist; see -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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