Flint was one of the most widely employed raw materials for artefact manufacture in Denmarkand Sweden during the Stone Age, and it continued to be used during subsequent periods.Prehistoric flint mining and lithic manufacturing studies in these countries have attractedconsiderable attention, but there have been no recent attempts to chemically characterize thegeological source materials. This paper builds on a pilot study (Hughes et al. 2010) and usesenergy-dispersive X-ray fluorescence (EDXRF) analysis to determine quantitative compositionestimates for nine major, minor and certain trace elements in seven archaeologicallysignificant flint sources in Denmark and Sweden, along with new data on a number of othersources of prehistoric significance. These data provide a geochemical foundation for ongoingresearch devoted to determining contrasts and continuities in the time and space utilization offlint sources in Scandinavian prehistory.