nagyagite Min.
(ˈnædʒəgaɪt, ˈnægjəgaɪt)
[f. Nagyag in Hungary, its locality; named by Haidinger in 1845.]
Black telluride of lead.
| 1849 Nicol Min. 476 Nagyagite..in the open tube emits sulphurous acid. 1882 Dana Min. (ed. 4) 149 Nagyagite, or Foliated tellurium, is..foliated like graphite. |