عمليات تعدين النحاس
\n \n تقنيات استخلاص النحاس المعرفة \n. التاريخ The earliest evidence of cold hammering of native copper comes from the excavation at Çaÿonü Tepesi in eastern Anatolia The radiocarbon date is 7250 ± 250 BCE Among the various items considered to be votive or amulets