Mineralogical and geochemical data from sulphides and other ore minerals from the Skouries porphyry Cu-Au deposit, Greece. Samples were taken from several boreholes from the Skouries mine, courtesy of Eldorado Gold Corporation. This data contains petrological photographs; identification of platinum group minerals and precious metal minerals; and trace element concentration of ore minerals. This data was collected as part of the TeaSe consortium NERC grant in order to determine the concentration and hosting of critical and precious metals in various types of ore deposits and barren rocks from different geological environments. This data was collected and interpreted by researchers at Cardiff University and is used in a paper, available at https://doi.org/10.1016/j.oregeorev.2018.06.014.