How much do 666 one-dollar coins weigh?

There are 6 grams of one-dollar coins, so the weight of 666 one-dollar coins is as high as 3996 grams.

Coins, that is, coins made of metal, have a history of thousands of years in China. The earliest metal coin was the Shang Dynasty Baode copper shell, which has been more than 3000 years. Metal coins have the advantages of convenient use, wear resistance and long circulation life. In addition to its own monetary function, it also has high artistic appreciation and preservation functions.