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 ]
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 ]