标题：Csiszolt kőeszközök és ékkövek roncsolásmentes SEM-EDX vizsgálata: lehetőségek és korlátok = Non-destructive SEM-EDX analytical method for polished stone tools and gems: opportunities and limitations
摘要：Recently we have developed a new method in the SEM laboratory of Department of Petrology and Geochemistry; E.tv.s Lor¨¢nd University, in order to perform in situ mineral chemical and textural examination of artifacts. This method called as "original surface investigation method" allows to complete non-destructive in situ textural and mineral chemical studies on the archaeological findings. Our SEM is equipped with quite large sample chamber, in which samples up to 300x200x55 mm can be analyzed. This special investigation needs special sample preparation process. The main steps of this process: cleaning, wrapping the sample into aluminum foil, performing an appropriate surface for investigation, and at last carbon coating. After this process we can place the artifacts into the sample chamber of the scanning electron microscope, take photos and achieve EDX measurements. The aim of this work was a comparative chemical and textural analysis which was carried out on thin sections and original (raw) surfaces of the same samples. We chose easily recognizable and chemically durable mineral phases for the comparative chemical analyses. Mounted gemstones can be well studied too by using this sample preparation method, without doing any harm to them or modifying their state. According to our results this method is a useful tool to perform non-destructive archaeometrical investigations in most cases. It can provide adequate chemical and visual information about several rocks types and gemstones. In some cases this method can provide only partial results, in these cases other ¨C and maybe destructive ¨C methods needed for precise results
