Fig. 3From: First evidence for alloying practices in the Chalcolithic Southern Levant (4500–3800 BCE) as revealed by metallographyTypical examples for (a) unalloyed copper, section F4-107-m, with quartz inclusions, (b) polymetallic copper alloys with low levels of the alloying elements, F206-m, (c) polymetallic copper alloys with high levels of alloying elements, F238-m1, (d) F231-m, (e) F502-m, and (f) cuprite phase in unalloyed copper, F234-mBack to article page