How to Tell If a Coin Is Silver
Finding a silver coin in change or an old collection is genuinely exciting — but only if you can reliably identify it. Here are four tests you can use at home, in order from fastest to most definitive.
Test 1: The Date Test (Fastest)
For US coins, the date is the single fastest identifier. The US Mint switched from silver to clad (copper-nickel) compositions in 1965 for dimes, quarters, and half dollars. Memorize these cutoffs:
90% Silver US Coins (1964 and earlier)
- • Dimes — Roosevelt (1946–1964), Mercury (1916–1945), Barber (1892–1916)
- • Quarters — Washington (1932–1964), Standing Liberty (1916–1930), Barber (1892–1916)
- • Half Dollars — Franklin (1948–1963), Walking Liberty (1916–1947), Barber (1892–1915)
- • Morgan Dollars — 1878–1904, 1921
- • Peace Dollars — 1921–1928, 1934–1935
40% Silver: Kennedy Half Dollars 1965–1970
Kennedy halves from 1965 to 1970 contain 40% silver. From 1971 onward they are clad with no silver content. These are often overlooked by casual hunters.
35% Silver: War Nickels 1942–1945
Jefferson nickels from mid-1942 through 1945 marked with a large mint mark above Monticello contain 35% silver. Look for the oversized P, D, or S above the dome on the reverse.
Test 2: The Edge Test
Look at the edge (the third side) of the coin. This is the most reliable visual test for dimes, quarters, and half dollars and requires no equipment:
Silver coin edge
Uniform silver-gray color all the way through. No copper stripe visible. The edge matches the face of the coin in color. On worn coins the reeding (ridges) may be smooth but the color is still consistent.
Clad coin edge
A distinct orange-copper stripe runs through the middle of the edge. This is the copper core sandwiched between nickel-clad outer layers. It's immediately obvious once you know to look for it.
Note: 40% silver Kennedy halves (1965–1970) show a faint copper tint on the edge due to their copper core — they're not as clean as pre-1965 coins but are clearly different from fully clad post-1970 halves.
Test 3: The Ring Test
Drop the coin onto a hard surface — tile, glass, or marble — from a few inches up. Silver coins produce a distinctive clear, high-pitched ring that sustains for a moment, like a small bell. Clad coins make a flat, dull thud with no resonance.
This works because silver has exceptional acoustic properties — it's one of the most efficient conductors of sound waves of any metal. You can also balance the coin on your fingertip and tap it with another coin; the ring is more pronounced this way and easier to hear in a noisy environment.
The ring test improves with practice. Get a confirmed silver dime, quarter, and dollar as references and compare them against suspect coins. Once your ear is calibrated, the difference is unmistakable.
Test 4: The Ice Test
Silver has the highest thermal conductivity of any metal. When you place an ice cube on a silver coin, it melts significantly faster than on a clad coin. Set up two coins side by side, place equal-sized ice cubes on each at the same time, and watch. The silver coin's ice starts visibly melting within seconds.
This test is more of a demonstration than a daily sorting tool, but it's scientifically sound and nearly impossible to fake. It's also useful for authenticating suspected silver bars or rounds when buying from an unknown source, since silver plating over a steel or zinc core won't conduct heat the same way a solid silver piece does.
The Magnet Test — Secondary Use Only
Silver is not magnetic. If a coin strongly attracts a rare-earth magnet, it contains ferromagnetic material and is either not silver or not solid silver (e.g., a steel slug with silver plating). This test is most useful for checking whether a bar or round is a ferrous fake.
However, most modern clad coins (copper-nickel) also aren't magnetic, so passing the magnet test does not confirm silver. Use the date and edge tests as primary identifiers. The magnet is a fraud check, not a silver confirmation test.
What's a Silver Coin Worth?
Once you've confirmed a coin is silver, its melt value depends on the silver content and the current spot price. A pre-1965 US dime contains 0.0723 troy oz of silver. At $30/oz spot, that's about $2.17 in melt value — more than twenty times face value. A silver quarter contains 0.1808 oz of silver.
Use our US Coin Melt Value Calculator to see exact values for any silver coin at today's live spot price. For sorting a bag of junk silver by face value, try the Junk Silver Calculator.
Frequently Asked Questions
What years are US dimes silver?
US dimes minted in 1964 and earlier are 90% silver. This includes Roosevelt dimes (1946–1964), Mercury dimes (1916–1945), Barber dimes (1892–1916), and Seated Liberty dimes (1837–1891). Dimes from 1965 onward are clad copper-nickel with no silver.
How can I tell a silver quarter without looking at the date?
Check the edge. Silver quarters (pre-1965) have a solid silver-gray edge with no copper stripe. Clad quarters show a visible orange-copper layer in the middle of the edge. The ring test also works — a silver quarter rings clearly; a clad quarter thuds.
Does the magnet test reliably identify silver coins?
No. The magnet test rules out ferrous fakes but can't confirm silver, since most clad coins also aren't magnetic. Use date and edge checks first. The magnet is only useful as a secondary fraud check for bars and rounds.