Nagyagite

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Nagyagite \Nag"yag*ite\, n. [So called from Nagyag, in
     Transylvania.] (Min.)
     A mineral of blackish lead-gray color and metallic luster,
     generally of a foliated massive structure; foliated
     tellurium. It is a telluride of lead and gold.
     [1913 Webster]