Mint was to strike Half Cents and Cents in copper, Half Dimes, Dimes, Quarter Dollars, Half Dollars, and Silver Dollars – all in silver. The Coinage Act of Apfounded the building of a United States Mint to regulate and establish a coinage within the United States. They are the largest, heaviest circulating silver coins in our history. American Silver Dollars are some of the most popular coins in the world. But it is a difficult question to answer accurately without more information. People often ask us what their silver dollar is worth.