What Is "Junk Silver"? A Complete Guide
"Junk silver" is one of the most beginner-friendly ways to own physical precious metals. Despite the unflattering name, it's simply US coinage struck in 90% silver before the government phased silver out of circulating coins — valued purely for its metal content, not rarity.
Why 1965 Is the Cutoff
Rising silver prices in the early 1960s pushed the metal value of dimes and quarters close to their face value, triggering hoarding and a national coin shortage. The Coinage Act of 1965 responded by switching dimes and quarters to copper-nickel "clad" composition (no silver at all), and reducing half-dollars to 40% silver through 1970 before eliminating silver entirely by 1971.
- Dimes & Quarters: 90% silver through 1964. 1965 onward: 0% silver (clad).
- Half-Dollars: 90% silver through 1964, 40% silver 1965-1970, 0% silver from 1971.
- This calculator is built for the 90% silver coins (1964 and earlier).
The 0.715 oz/$1 Constant, Explained
Every $1 face value of pre-1965 dimes, quarters, or half-dollars — in any mix — contains 0.715 troy ounces of pure silver. A perfectly un-circulated coin would theoretically contain 0.7234 oz per dollar, but decades of handling wear a small amount of metal off every coin in circulation. The industry settled on 0.715 oz/$1 as the standard trading figure that accounts for this average wear, and virtually every dealer, refiner, and pricing service uses it.
💡 Quick Reference
$1.40 face value ≈ 1 full troy ounce of silver. A common "$10 face value bag" (a standard unit dealers sell) contains 7.15 troy ounces.
Face Value to Ounces Reference Table
| Face Value | Silver Content | Common Unit |
|---|---|---|
| $1.40 | ≈ 1.00 troy oz | - |
| $10 | 7.15 troy oz | Small dealer bag |
| $100 | 71.5 troy oz | Standard "bag" unit |
| $1,000 | 715 troy oz | Full circulation bag |
Silver Dollars Are a Different Animal
Morgan dollars (1878-1921/1921) and Peace dollars (1921-1935) are frequently confused with junk silver, but they follow a different rule: since $1 face value already equals exactly one coin, they're priced per-coin, not per-dollar-of-face-value. Each Morgan or Peace dollar contains 0.7734 troy oz of silver — noticeably more than the 0.715 oz/$1 ratio for dimes and quarters. Additionally, many specific dates and mint marks carry real numismatic premiums well above melt value, so always check a coin's date before assuming it's "just" bullion.
How to Identify Genuine 90% Silver Coins
- Check the date: 1964 or earlier for dimes/quarters/halves (silver); 1965+ has no silver.
- Look for the edge: Silver coins have a solid, uniform edge color. Clad coins show a visible copper stripe sandwiched between outer layers when viewed edge-on.
- Sound test: Silver coins produce a higher-pitched, longer-ringing sound when tapped compared to the duller clunk of clad coins — experienced collectors can often tell by ear alone.
- Weigh it: A 90% silver quarter weighs 6.25g; a clad quarter weighs 5.67g. A precision scale settles any doubt.
Frequently Asked Questions
What exactly counts as "junk silver"?
"Junk silver" means pre-1965 US coins struck in 90% silver / 10% copper that have no meaningful numismatic (collector) premium — they're valued purely for their silver content. This includes Roosevelt and Mercury dimes, Washington and Barber quarters, and Franklin and Walking Liberty half-dollars dated 1964 or earlier. "Junk" doesn't mean low quality; it just means the coin trades at melt value, not collector value.
How much is $1 face value of silver coins worth?
Each $1 face value of 90% silver dimes/quarters/halves contains 0.715 troy ounces of pure silver — this is the industry-standard figure dealers use, and it already accounts for decades of circulation wear (the theoretical un-worn figure is 0.7234 oz). Multiply 0.715 by the current silver spot price to get the melt value of $1 face value.
Are silver dollars (Morgan/Peace) the same ratio?
No — this is a common mistake. Morgan and Peace silver dollars (1878-1935) contain 0.7734 troy oz of silver each, not $1 face value worth of the 0.715 oz/$1 dime-quarter-half ratio. They're priced per-coin, not per-dollar-of-face-value, since $1 face value already equals exactly one coin. Use this calculator's coin-type selector to switch between the two ratios.
Why did silver coinage stop in 1965?
Rising silver prices in the early 1960s made the silver in dimes and quarters worth close to their face value, causing hoarding and coin shortages. The Coinage Act of 1965 replaced silver dimes and quarters with copper-nickel clad coins, and reduced half-dollars to 40% silver (1965-1970) before eliminating silver entirely in 1971. Any dime or quarter dated 1965 or later contains no silver.
Does the condition or grade of the coin matter for melt value?
For junk silver, no — a heavily worn 1943 dime and a lightly circulated 1963 dime contain essentially the same silver content, and both trade at melt value. Condition only matters if a specific coin has numismatic value (rare date, mint error, exceptional uncirculated grade), in which case it's no longer "junk" silver and this calculator doesn't apply — get it appraised separately.
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