I'm not sure what you mean by "copper quarter". All quarters struck for circulation since 1965 are made of the same "sandwich" consisting of nickel and copper outer cladding over a solid copper core. That's why they have a silvery outside and a reddish copper edge.
If your quarter appears to be solid copper, I can think of 3 possibilities:
1. If it's about 1/3 the thickness of a normal quarter, the outer cladding may have come apart leaving the inner core by itself. This is called a lamination error and is a major find possibly worth a few hundred dollars.
2. If it's the same weight and thickness as a normal quarter, someone simply plated it with copper. That's a standard school chemistry experiment involving copper sulfate and batteries. In this case it's a damaged coin worth face value only.
3. It's an "off-metal strike" that occurred when a blank intended for a foreign coin accidentally got mixed in with normal quarter blanks and was struck with the U.S. design. That's unlikely, but if it can be authenticated it would be worth quite a bit.
If your coin fits the first category, I'd have it inspected by a couple of dealers to get an idea of its price. However, my money is riding on #2, I'm sorry to say. If in uncirculated condition, about 50-60 USD.
25 cents.
On eBay they're sold for $2.
25 cents.
25 cents. It is made out of copper-nickel, contains no silver and is worth only face value. They are incredibly common and can easily be found in pocket change.
It is worth 25 cents, or one quarter of one dollar. 1966 is not old enough for the coin to have gotten valuable.
25 cents.
On eBay they're sold for $2.
A quarter from 2006 would still be worth 25 cents.
25 cents.
25 cents. It is made out of copper-nickel, contains no silver and is worth only face value. They are incredibly common and can easily be found in pocket change.
No U.S. coins dated 1966 have a mint mark. The '66 quarter is worth 25 cents.
It is worth 25 cents, or one quarter of one dollar. 1966 is not old enough for the coin to have gotten valuable.
It's a common date, worth 2 cents for the copper.
Quarters from 1983 are still worth 25 cents.
It's worth a quarter because we trust the economy and believe it to be a quarter. Although the physical value is not worth a quarter, it's still worth a quarter. So no you're not getting ripped off.
A quarter never had 25 cents worth of copper in it. Quarters used to be made of roughly 25 cents worth of silver, but are now made of mostly copper due to cost reasons. The fact remains that a quarter is still worth 25 cents, and if you should so wish you could go and buy 25 cents worth of copper with it (a little more than two ounces of copper). Sorry I ment to say a quarter used to have 25 cents worth of silver in it now it has 2 cents worth of copper are you getting ripped off? I will reenter the question. Thanks.
The 2006 quarter is composed of a core of pure copper with outer layers of copper-nickel. If there was truly no copper then there would be no coin. If the usual copper line is missing from the edge of the quarter it is not because there is no copper in it but because as the blank quarter was stamped out of the sheet of metal, the outer layers containing the nickel were "smeared" over the edge of the blank quarter by the cutting die and concealing the customary copper band. Scraping the edge of the coin would reveal the copper.