21.15109/ARP/FQGMI0Döncző, BoglárkaBoglárkaDöncző0000-0002-8915-0923ATOMKIARP2026PhysicsHungarian Conquest periodarchaeometryXRFelemental compositionnon-destructive10th centuryDöncző, BoglárkaATOMKIDöncző, BoglárkaBoglárkaDönczőHUN-REN Institute for Nuclear ResearchBálint, MariannMariannBálintHajdúsági Museum2026-03-202026-05-112020-07-29/2022-11-25tables, images10.1007/s12520-026-02491-921669638547application/pdftext/plain1.0CC BY-NC 4.0In recent years, material composition analysis has become increasingly important in evaluating finds from the Hungarian Conquest period in the Carpathian Basin. As a result, compositional data for around 300 items is now available, primarily in Hungarian-language publications. Our goal is to introduce this field to an international audience. Previous studies focused on individual graves, cemeteries, or sites. During the preparation of a summary volume on Hajdú-Bihar County finds, the idea of compiling results in a database and supplementing them with additional measurements emerged. In order to have representative results from the entire area, artefacts from various micro-regions were selected for analysis. Surface images were captured with a 3D microscope, and elemental composition was analyzed using a micro-XRF instrument. The research found a correlation between the function of the artefacts and their elemental composition, supporting traditional classifications. Users are kindly requested to cite both this data package (via the handle identifier) and the associated scientific publication (https://doi.org/10.1007/s12520-026-02491-9).Supplementary material