The　Zijinshan　orefield　is　a　Cu-Au-Mo-Ag　porphyry-epithermal　mineralization　system　of　Cretaceous　age　in　southeastern　China,　comprising　the　Zijinshan　high-sulfidation　(HS)　Au-Cu　deposit,　Luoboling　porphyry　Cu-Mo　deposits,　Yueyang　low-sulfidation　Au-Ag-Cu　deposit,　and　Wuziqilong　and　Longjiangting　intermediatesulfidation　(IS)　Cu　deposit.　A　number　of　Sn-(W)-sulfides　occur　in　the　Zijinshan　orefield,　including　kiddcreekite,　hemusite,　colusite,　vinciennite,　stannoidite,　mawsonite　and　kesterite.　The　occurrence　represents　the　first　report　of　hemusite,　colusite　and　vinciennite　in　China.　The　relative　abundance　and　diversity　of　Sn-(W)-sulfide-bearing　assemblages　make　the　Zijinshan　orefield　possibly　unique　in　the　world,　and　carries　implications　for　the　evolution　of　the　mineralizing　environment　Detailed　electron　probe　studies　of　the　Sn-minerals　reveal　that　kiddcreekite,　hemusite,　mawsonite,　stannoidite　and　kesterite　have　compositions　close　to　ideal　formulae.　In　contrast,　colusite　displays　grain-scale　zoning　expressed　by　W,　Sn　and　As.　Vinciennite　displays　compositional　variation　depending　on　mineralization　style:　an　average　composition　of　Cu10.74Fe3.88Sn(As-0.85,Sb-0.08)S-15.4　in　the　Zijinshan　HS　deposit　Cu10.71Fe3.9SnAs0.85S15.34　in　the　Wuziqilong　Cu　deposit　and　Cu10.76Fe3.7Sn1.02　(As-0.5,Sb-0.45)S-15.54　with　higher　Sb　contents　(3.32%)　in　the　adjacent　Longjiangting　Cu　deposit　In　the　Zijinshan　HS　Au-Cu　deposit,　the　main　Cu-mineral　assemblage　varies　from　bornite-rich　to　digenite-　to　covellite-rich　with　increasing　depth.　Correspondingly,　tin　mineralogy　varies　from　kesterite　at　upper　levels　to　stannoidite-dominant　at　mid-to-upper　levels　of　the　copper　orebody,　to　vinciennite-　and　mawsonite-dominant　at　depth,　implying　an　increase　in　sulfidation　and　oxidation　state　downwards.　Moreover,　kiddcreekite　is　always　partially　replaced　by　wolframite　and　(hypogene)　covellite　at　depth,　also　indicating　overprinting　by　high-fO(2)　and　-fS(2)　fluids　in　the　covellite　stage　of　mineralization.　Kiddcreekite,　along　with　a　primary　chalcopyrite-pyrite　mineral　association,　occurs　widely　in　the　Zijinshan　orefield　(Zijinshan,　Yueyang,　Luoboling,　Wuziqilong,　Longjiangting　and　Dayanli),　and　is　likely　indicative　of　the　early　IS　stage　of　epithermal　system.　Analogous　with　published　data,　kiddcreekite　most　commonly　occurs　in　porphyry-style　mineralization,　implying　the　presence　of　the　mineral　has　potential　as　an　indicator　of　porphyry　systems.　Vinciennite-bearing　Cu-Sn-As　mineral　associations　occur　in　a　specific　position　in　the　Zijinshan　HS　Au-Cu,　Wuziqilong　and　Longjiangting　Cu　deposits,　indicative　of　a　transitional　zone　between　porphyry　and　HS　epithermal-style　mineralization.　The　occurrence　of　the　identified　Sn-(W)-sulfide-bearing　assemblages　has　considerable　potential　implications　for　understanding　the　architecture　of　a　complex　porphyry-epithermal　environment　and　for　exploration　for　underlying　porphyry　copper　deposits.　There　is　potential　for　discovery　of　a　subjacent　porphyry　Cu　deposit　within　the　Zijinshan　orefield.　(C)　2015　Elsevier　B.V.　All　rights　reserved.