There are two primary types of silver: pure silver and so-called “junk silver.”
Pure silver is usually sold as 1 oz rounds, 10 oz bars, and 100 oz bars. Junk silver, on the other hand, refers to certain types of coins that contain silver, but have no numismatic (collectable) value.
Perhaps the most well-known junk silver coin here in the U.S. is the “Mercury Dime.” These are dimes from 1964 and earlier that have Roosevelt’s face on one side.
The infographic below explains in detail how to spot junk silver coins that may already be in your possession.
Infographic courtesy of Gainesville Coins.