Anonymous ID: 57b41d April 5, 2019, 4:45 p.m. No.6065160   ๐Ÿ—„๏ธ.is ๐Ÿ”—kun

>>6065133

>https://en.wikipedia.org/wiki/Orichalcum

Orichalcum may have been a noble metal such as platinum,[1] as it was supposed to be mined, or one type of bronze or brass or possibly some other metal alloy. In 2015, metal ingots were found in an ancient shipwreck in Gela (Sicily), which were made of an alloy primarily consisting of copper, zinc and small percentages of nickel, lead, and iron.[2][3]

 

In numismatics, orichalcum is the golden-colored bronze alloy used by the Roman Empire for their sestertius and dupondius coins.[4]