Dollar coins have been minted in the
United States in gold, silver, and base metal versions.
The term silver dollar is often used
for any large white metal coin issued by the United States with a face
value of one dollar; although purists insist that a dollar is not silver
unless it contains some of that metal. Silver dollars, the first dollar
coin issue, were minted beginning in 1794.
Gold
and gold-colored dollars have also been produced by the United States.
The Sacagawea and Presidential dollars are usually referred to as
golden, despite not containing any gold, as they are of a golden color. | 
