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jamesonite

[jeym-suh-nahyt] /ˈdʒeɪm səˌnaɪt/
noun
1.
a metallic, dark-gray mineral, lead and iron antimony sulfide: formerly mined for lead.
Origin
1815-1825
1815-25; named after Robert Jameson (1774-1854), Scottish scientist; see -ite1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for jamesonite
  • Arsenopyrite, jamesonite, and visible free gold are reported from quartz-sulfide veins in the old prospect pits.

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