Tracing the source of Late Neolithic Spondylus shell ornaments by stable isotope geochemistry and cathodoluminescence microscopy

► We performed stable isotope analysis and CL study on Late Neolithic Spondylus ornaments, recent and fossil Spondylus shells. ► Late Neolithic Spondylus objects from Hungary (Aszód site) have Mediterranean (Aegean or Adriatic) origin. ► Based on the mineralogy the studied Spondylus objects were made of recent shells. ► Calcitic parts observed in some objects are not related to fossilisation.