Mineralogy of Bi-sulfosalts and tellurides from the Yaoan gold deposit, southwest China: Metallogenic implications

•Bismuth-sulfosalts principally comprise bismuthinite derivatives, paděraite, cuprobismutite homologues, and emplectite, which are characterized by replacement textures resulting from the changes in fluid composition.•Tellurides/Bi-chalcogenide include tsumoite, melonite, hessite, calaverite, and tetradymite, indicating the precipitation of gold under oxidizing conditions with initial high fTe2.•The Yaoan gold metallogenesis was likely linked to the syenite porphyry magmatism that was originally sourced from a regional lithospheric mantle probably metasomatized by subducted Te-rich sediments.