Native auriferous silver is found in lead-zinc(-silver) ores from Dongjeom deposit, which is mineralized at later stage optical property and chemical data are presented. The mineral is intergrown intimately with galena, Mn-bearing magnetite, alabandite, pyrargyrite and carbonate. Its chemical composition as determined by electron microprobe in WDX mode shows that it is characterized by relatively hige content of Au ranging from 5.82 to 1393, Sb ranging from 0.39 to 1.51 and S ranging from 0.15 to 1.48 weight percent.

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