Unearthing Kvemo Bolnisi: A 3,000-Year-Old Copper Workshop In the southern Caucasus, the Kvemo Bolnisi site in Georgia preserves a workshop dating back roughly three millennia. When archaeologists excavated the area in the mid-20th century, they unearthed caches of hematite, an iron oxide mineral, and extensive slag—byproducts of metal production. Based on those finds, the original…