@misc{Lisowska_Ewa_The_2020,
 author={Lisowska, Ewa and Gunia, Piotr},
 copyright={Copyright by the Authors and Institute of Archaeology University of Wrocław},
 address={Wrocław},
 howpublished={online},
 year={2020},
 publisher={Uniwersytet Wrocławski Instytut Archeologii},
 language={eng},
 abstract={This paper concerns the results of the petrographic analysis of some serpentinite artefacts found at archaeological sites, dated back to the early Middle Ages. The well documented Lower Silesian serpentinite deposit exploitation during the Neolithic, incited the authors to verify whether these quarries were sourced in the early Middle Ages as well. The latter supposition was based on an existing collection of serpentinite items from the Ostrów Tumski archaeological site (Wrocław’s Cathedral Island). As a result of their petrographic analysis the items were found to derive from the outcrops situated in the area of Jordanów Śląski (circa 40 km from Wrocław), the very region where Neolithic quarrying activities were previously recorded. Medieval usage of these rocks was much scarcer than in the Neolithic.The highly evident import of serpentinite raw material to medieval Wrocław in the first quarter of the 11th century may be related to the process of the Cathedral’s construction and decoration, as elements of the stone siding of its walls constitute the majority of the artefacts examined.},
 abstract={This paper concerns the results of the petrographic analysis of some serpentinite artefacts found at archaeological sites, dated back to the early Middle Ages. The well documented Lower Silesian serpentinite deposit exploitation during the Neolithic, incited the authors to verify whether these quarries were sourced in the early Middle Ages as well. The latter supposition was based on an existing collection of serpentinite items from the Ostrów Tumski archaeological site (Wrocław’s Cathedral Island). As a result of their petrographic analysis the items were found to derive from the outcrops situated in the area of Jordanów Śląski (circa 40 km from Wrocław), the very region where Neolithic quarrying activities were previously recorded. Medieval usage of these rocks was much scarcer than in the Neolithic.The highly evident import of serpentinite raw material to medieval Wrocław in the first quarter of the 11th century may be related to the process of the Cathedral’s construction and decoration, as elements of the stone siding of its walls constitute the majority of the artefacts examined.},
 title={The use of Lower-Silesian serpentinites in the early Middle-Ages},
}