Abundant　kiddcreekite　grains　were　identified　in　the　Zijinshan　Cu-Au　epithermal　deposit　in　Fujian　Province,　China.　The　mineral　occurs　as　polycrystalline　grains,　5-300　μm　in　size,　associated　with　colusite,　enargite,　stannoidite,　mawsonite,　vinciennite,　hemusite,　tennantite　and　wolframite　in　a　predominantly　covellite　ore.　Based　on　electron　microprobe　analysis,　the　empirical　formula　of　the　kiddcreekite　is　Cu6.2Sn0.97W0.95S7.83,　without　significant　Se　or　Te　contents.　The　crystal　structure　of　kiddcreekite　was　solved　using　the　direct-space　method　(EPCryst)　from　laboratory　micro　X-ray　diffraction　(μXRD)　data　and　refined　by　the　Rietveld　method.　The　R　values　of　the　final　Rietveld　refinement　were　Rp　=　9.06%,　Rwp　=　8.31%,　RB　=　3.16　and　RF　=　2.17%.　Kiddcreekite　has　a　cubic　structure,　space　group　F43m　and　lattice　parameter　a　=　10.8178(3)　Å　(Z　=　4,　V　=　1265.95(6)　Å3).　In　the　unit　cell,　W,　Sn　and　Cu　atoms　occupy　the　4a,　4c　and　24f　Wyckoff　positions,　respectively,　and　S　atoms　occupy　two　sets　of　16e　Wyckoff　positions.　The　structure　of　kiddcreekite　consists　of　stacked　double　MeS4　layers　(giving　a　W-Sn-Cu　tier　and　a　Cu-vacancy　tier)　as　in　the　sphalerite　substructure.　This　study　also　demonstrates　the　possibility　of　using　laboratory　μXRD　data　coupled　with　the　direct-space　method　to　solve　inorganic　structures　in　cases　where　samples　are　too　small　for　conventional　powder　and　single-crystal　diffraction.　©　2014　Mineralogical　Society.