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The 2018-S Apostle Islands Silver Quarter is worth anywhere from $8 in uncirculated condition to over $45 in high-grade Proof 70. While most quarters you find in your pocket are made of copper and nickel, this specific “S” mint mark version was struck in 90% silver for collectors.
| Condition | Estimated Value |
|---|---|
| PR 65 (Deep Cameo) | $10.00 – $12.00 |
| PR 69 (Deep Cameo) | $18.00 – $22.00 |
| PR 70 (Perfect Grade) | $40.00 – $55.00 |
| Raw Silver Melt Value | $4.50 – $6.00 (Varies with Market) |
Identifying Your 2018-S Apostle Islands Silver Quarter
If you’ve recently inherited a coin collection or found a shiny quarter in a felt-lined box, you might be holding a piece of American history. The Apostle Islands quarter was the 42nd release in the “America the Beautiful” series. Identifying the silver version is the first step in knowing its worth. You can use a top coin identifier app to quickly confirm the mint mark and orientation of your coin.
The most important feature is the “S” mint mark located on the obverse (front) of the coin, to the right of George Washington’s ponytail. This signifies it was minted in San Francisco. However, not all “S” quarters are silver. Some are “Clad” (copper-nickel). You can tell the difference by looking at the edge of the coin. If you see a solid silver-colored edge without a copper stripe, it is highly likely you have the silver version.
The CoinKnow app can help you verify these details by comparing your coin’s luster and weight to known silver specimens. Silver quarters weigh 6.25 grams, while standard clad quarters weigh 5.67 grams. If you find your coin weighs more than a standard quarter, you are likely looking at a premium piece of bullion.
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Historical Background of the Apostle Islands Design
The Apostle Islands National Lakeshore in Wisconsin is famous for its stunning sea caves and lighthouses. The reverse (tails) side of the 2018-S quarter depicts the sea caves at Devils Island with a kayaker paddling in the foreground. This design was created by Richard Masters and sculpted by Renata Gordon.
Because these were never released for general circulation, they often retain their “Deep Cameo” finish. This means the frosted design stands out sharply against a mirror-like background. Understanding these artistic nuances is vital when checking the 2018 silver quarter’s current market value, as the visual appeal significantly impacts the final price.
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Many collectors seek out the “S” silver quarters because they represent a limited mintage. Unlike the Denver and Philadelphia mints that produced hundreds of millions of coins for everyday use, the San Francisco mint produced these specifically for annual Silver Proof Sets. If yours has escaped its original mint packaging, it is still worth significantly more than its face value of 25 cents.
Determining the Grade and Silver Content
The value of your 2018-S Apostle Islands Silver Quarter is largely dictated by its “grade.” Grade refers to the physical condition of the coin on a scale of 1 to 70. Since most of these coins were sold in protective plastic cases, they are usually found in grades of PR 65 (Proof 65) or higher.
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The silver content is also a major factor. These coins are composed of 90% silver and 10% copper. This gives the coin an intrinsic “melt value” that fluctuates with the price of precious metals. Even if the coin is scratched, it will always be worth at least its weight in silver. When looking for the latest price trends for 2018 America the Beautiful quarters, you will notice that silver versions consistently command a massive premium over their clad counterparts.
Professional grading services like PCGS or NGC can certify your coin, but for everyday finders, using CoinKnow allows you to get an instant estimate of the grade without spending money on shipping and grading fees. Look for “chatter” or small scratches on the flat surfaces of the coin, as these decrease the value from a perfect 70 down to a 67 or 68.
| Mintage Type | Composition | Rarity Level |
|---|---|---|
| 2018-S Silver Proof | 90% Silver | Medium-Low |
| 2018-S Clad Proof | Copper-Nickel | Common |
| 2018-P/D Business Strike | Copper-Nickel | Very Common |
Why the Mint Mark Matters for Value
The “S” mint mark is a beacon for collectors. While Philadelphia (P) and Denver (D) coins were made for the grocery store and the vending machine, the San Francisco (S) mint is the “boutique” mint of the US Treasury. In 2018, there were also “S” clad quarters, which are shiny but contain no silver.
Your Old Coin Could Be Valuable!
Identify It & Know Its Real Value — Free Download
Distinguishing between the two is essential. If you have an “S” quarter, the best way to verify it is silver is the “tissue test.” Place a single layer of tissue paper over a silver quarter and a regular quarter. The silver one will appear bright white through the paper, while the clad one will look dark or grey.
The CoinKnow app’s scanning feature is particularly useful here, as it can detect the specific luster patterns unique to the 90% silver planchets used in 2018. Investors often buy these coins in rolls to hedge against inflation, making them a “semi-numismatic” asset—part collectible, part silver investment.
Protecting Your Apostle Islands Silver Quarter
If you find that your 2018-S Apostle Islands Silver Quarter is in pristine condition, you must protect it to maintain its value. Silver is a soft metal and scratches very easily. Never clean your coins with chemicals or abrasive cloths. Even a gentle wipe can leave “hairlines” that drastically reduce the coin’s grade and market price.
Your Old Coin Could Be Valuable!
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Store your silver quarters in acid-free plastic flips or capsules. Avoid keeping them in PVC-based holders, which can cause a green, sticky residue known as “PVC damage” that eats into the silver surface. Keeping the coin in a cool, dry place will also prevent toning—the natural oxidation of silver that can turn the coin yellow, blue, or black over time.
While some collectors enjoy “rainbow toning,” most beginners are better off keeping their coins as bright and white as possible. Checking the value regularly on CoinKnow will help you decide when the market is right to sell or if you should continue holding your silver as an investment.
| Year/Mint | Mintage (approx) | Value in PR70 |
|---|---|---|
| 2018-S Apostle Islands Silver | 390,000 | $45.00 |
| 2018-S Pictured Rocks Silver | 390,000 | $42.00 |
| 2018-S Voyageurs Silver | 390,000 | $43.00 |
FAQ
Q: How can I tell if my 2018-S quarter is actually silver?
A: The easiest way is to look at the edge of the coin. If the edge is solid silver/white with no copper-colored stripe, it is likely the silver version. You can also weigh it; silver quarters weigh 6.25g, while clad quarters weigh 5.67g.
Q: Is a 2018-S nickel-copper (clad) quarter worth anything?
A: Yes, it is worth more than face value, usually between $1 and $3 in uncirculated condition, but it does not have the high value of the 90% silver version.
Your Old Coin Could Be Valuable!
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Q: Did they make 2018-S quarters for general circulation?
A: No. Quarters with the “S” mint mark in 2018 were produced only for collectors and sold in sets or rolls directly from the US Mint. If you find one in change, someone likely took it out of a collector set and spent it.
Q: What is the melt value of a 2018 silver quarter?
A: It contains roughly 0.1808 troy ounces of pure silver. To find the current melt value, multiply the current spot price of silver by 0.18. Usually, this stays between $4 and $7.
Q: Where is the best place to sell my 2018-S Apostle Islands Silver Quarter?
A: For the best price, consider local coin shops or reputable online auction sites. Using an app like CoinKnow can help you determine a fair asking price before you negotiate with a buyer.