Analiza petrograficzna zabytków kamiennych ze stanowiska Grabowiec 1, gm. Radymno, pow. jarosławski, woj. podkarpackie

The text shows the results of the petrographic analysis of stone artifacts from site Grabowiec. Out of set of 87 stones, 19 artifacts made of stones were selected and underwent a petrographic analysis. The main goal of the conducted research was to identify the type of rock raw material used for execution of tools. Petrographic analyses consisted in drawing up an assessment and macroscopic description of a rock material, from which artifacts were made. The macroscopic description was enlarged by a study using binocular magnifying glass, in order to precisely define: overall external features of rocks (colour, degree of vapidity, compactness), structure and texture and the type of rock-forming minerals. On the basis of the petrographic study, the type of the used raw material was determined.