jamesonite Min.
(ˈdʒeɪmsənaɪt)
[Named 1825 after Professor Jameson, of Edinburgh (1773–1854).]
Sulph-antimonide of lead, usually occurring in fibrous masses; feather-ore.
| 1825 Haidinger tr. Mohs' Min. I. 451. 1868 Dana Min. (ed. 5) 91 Jamesonite occurs principally in Cornwall. |