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Definition of Nagyagite
1. n. 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.
Definition of Nagyagite
1. Noun. (minerology) A dark grey to black sulfide, formula (Pb5Au(Te,Sb)4S5-8). ¹
¹ Source: wiktionary.com