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The 2006-S Colorado Silver State Quarter is worth anywhere from $8 in typical proof condition to over $50 in perfect Gem Proof state. While standard quarters in your pocket are made of copper-nickel, these special silver editions carry a premium because of their precious metal content and limited mintage.
| Condition / Grade | Estimated Value |
|---|---|
| PR 65 (Deep Cameo) | $8 – $12 |
| PR 69 (Deep Cameo) | $15 – $22 |
| PR 70 (Perfect Grade) | $45 – $65+ |
| Silver Melt Value | Check Spot Price (~$5-$6) |
Understanding the 2006-S Colorado Silver State Quarter
The Colorado quarter was released on June 14, 2006, as the 38th coin in the United States Mint’s famous 50 State Quarters Program. While most people recognize the rugged mountain landscape on the reverse, not everyone realizes that the San Francisco Mint produced a specific version struck in 90% silver.
If you have found one of these in a collection or an estate, the first thing to check is the mint mark. If you see a small “S” to the right of George Washington’s portrait, you likely have a proof coin. However, the “S” mark appears on both clad (copper-nickel) and silver proofs.
To determine if yours is the more valuable silver variety, you can use a top coin identifier app to analyze the visual characteristics of the coin. Silver quarters have a brilliant white edge, whereas clad quarters show a distinct copper stripe when viewed from the side.
Because these were never intended for general circulation, finding one in your change is rare. When you do find one, using a tool like CoinKnow can help you log the find and track its market value over time as silver prices fluctuate.
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How to Identify the Silver Composition
The primary driver of the 2006-S Colorado Silver State Quarter value is its metal content. Unlike the standard 2006 quarters you find at the grocery store, the silver proof is composed of 90% silver and 10% copper. This gives the coin an intrinsic “melt value” that provides a floor for its price.
One of the easiest ways to tell the difference is the weight. A standard clad quarter weighs approximately 5.67 grams. In contrast, a 90% silver quarter is heavier, weighing roughly 6.25 grams. Small scales can be a collector’s best friend in this regard.
Your Old Coin Could Be Valuable!
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Another method is the “sound test.” If you gently tap a silver quarter, it produces a high-pitched, melodic ring. A clad quarter produces a duller “clink.” If you are unsure about the specifics of your 2006 strikes, you can compare the 2006 quarter value across different mintages to see how the silver version stacks up against the P and D mint marks.
Many casual collectors rely on CoinKnow to quickly identify these subtle differences. The app’s image recognition can often distinguish the “Deep Cameo” finish characteristic of these silver proofs, where the design elements are frosted and the background is mirror-like.
The “S” Mint Mark and Production Numbers
All 2006 Colorado quarters featuring the “S” mint mark were produced at the San Francisco Mint. These were sold in specialized sets directly to collectors and were never released into “the wild” for spending. This is why their condition is usually much better than the coins in your pocket.
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The mintage for the 2006-S Silver Colorado Quarter was approximately 1,585,008. While 1.5 million might sound like a lot, it is a tiny fraction compared to the hundreds of millions of Colorado quarters struck in Philadelphia and Denver for circulation.
This relative scarcity, combined with the silver content, makes it a targeted item for those completing “Silver State Quarter” sets. When looking at market data, it’s helpful to realize that the 2006 Colorado silver proof price is generally higher than its contemporary clad counterparts due to that limited mintage from San Francisco.
| Mint Mark & Type | Mintage | Target Market |
|---|---|---|
| 2006-P (Philadelphia) | 285,000,000 | Circulation |
| 2006-D (Denver) | 284,200,000 | Circulation |
| 2006-S Clad Proof | 2,054,108 | Collectors |
| 2006-S Silver Proof | 1,585,008 | Collectors (90% Silver) |
Grading and the Quest for PR70
For modern coins like the 2006-S silver quarter, the difference between “worth a little” and “worth a lot” comes down to the grade. Professionally graded coins by services like PCGS or NGC use a 70-point scale.
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A “PR70 Deep Cameo” (DCAM) is a perfect coin with no visible flaws even under 5x magnification. These are the “Holy Grail” for state quarter collectors. Because modern minting techniques are so precise, many coins coming out of the San Francisco Mint are high quality, but only a few receive the perfect 70 grade.
If your coin has even a tiny hairline scratch or a fingerprint, it will likely grade as PR68 or PR69. While still beautiful, the value drops significantly from the $50-$70 range down to the $15-$20 range. Using CoinKnow can help you compare your coin’s surface to high-resolution images of graded specimens to see if it’s worth the fee for professional grading.
Common Design Errors to Look For
While the Colorado Silver Quarter is mostly valued for its silver content and grade, errors can occasionally happen. Collectors often look for “doubled die” errors, where the lettering or images appear doubled due to a mistake during the hubbing process.
On the Colorado reverse, which features Longs Peak and a banner reading “Colorful Colorado,” enthusiasts check the details of the mountain and the evergreen trees. While no major “mega-errors” have been widely publicized for the 2006-S Silver version specifically, any unique anomaly could drastically increase the value.
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Keep an eye out for “strike-throughs,” where debris gets caught between the die and the coin blank, leaving an indentation. Even on silver proofs, these mistakes can occur, though the quality control at the San Francisco Mint is usually top-notch.
| Problem to Check | Impact on Value |
|---|---|
| Fingerprints/Oxidation | Decreases Value (Removes higher grades) |
| Toning (Rainbow Colors) | Can Increase Value for specific collectors |
| Double Die / Hub Error | Significantly Increases Value |
Where to Sell Your 2006 Silver Quarter
If you decide to sell your 2006-S Colorado Silver Quarter, you have several options. Because it is a silver coin, a local coin shop will at least pay you the melt value of the silver. However, if the coin is in a protective plastic lens (as it came from the mint), it is worth searching for a collector.
Online marketplaces like eBay are popular for selling individual state quarters. Look at “Sold Listings” rather than “Active Listings” to see what people are actually paying. You can also visit specialized numismatic forums.
Before selling, ensure you haven’t cleaned the coin. Cleaning a silver proof coin will leave tiny scratches that ruin its “Proof” status and drop its value back down to just the price of the raw silver. Always handle these coins by the edges to avoid leaving oils from your skin on the mirror-finish surfaces.
FAQ
Q: How can I tell if my 2006-S Colorado quarter is silver without a scale?
A: The most reliable visual way is to look at the edge of the coin. If you see a solid silver/white color with no trace of copper (brown/orange), it is likely the 90% silver version. If you see a copper stripe, it is a standard clad proof.
Your Old Coin Could Be Valuable!
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Q: Is the 2006-S Colorado quarter rare?
A: It is not “rare” in the sense that millions exist, but it is “scarce” compared to the billions of quarters meant for circulation. It was only available in special Silver Proof Sets, making it much harder to find than a standard P or D mint quarter.
Q: Does the 2006 silver quarter have more silver than others?
A: No, it contains the standard amount of silver used for the 90% silver proof series (about 0.1808 troy ounces of pure silver). This is the same silver content as silver quarters minted in 1964 and earlier.
Q: Is it worth grading my 2006-S Silver quarter?
A: Only if it appears to be absolutely perfect (a potential PR70). The cost of grading (often $25-$50 including shipping) usually exceeds the value of a PR68 or PR69 coin. Only “Perfect” coins make the investment of grading worthwhile.