In Roman metallurgy, new solutions for extracting gold on a large scale were created by introducing hydraulic mining techniques, particularly in Hispania from 25 BC onwards and in Dacia from 106 AD onwards. 1 of their largest mines was at Las Medulas in León, exactly where seven long aqueducts enabled https://sergiorwcg96395.blgwiki.com/793545/zahngold_verkaufen_tipps_und_informationen_zum_zahngoldankauf