Copper colored quarter????

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Yep, still looks like environmental damage. Looks like your fingers took some, too.

 

It does look like environmental damage but I can't explain the weight discrepancy. Or the apparent lack of strike weakness. Check your scale, and make sure it isn't set on pennyweights. Your figure is just about right for the pennyweight weight of a slightly heavy regular quarter.

 

I also have a 1988 D quarter that looks tarnished like a copper penny. Weighs 5.67 g

 

I also have a 1988 D qtr that looks tarnished like a copper penny, weighs 5.67g

 

Start your own unique thread with pictures.. Must have pictures!

 

I have one very similar,1984 D SQ, in the ways that it has an off color like copper and is thinner considerably... I’ve weighed it and it doesn’t come in at 5.67 in fact it’s around a ???weight of 5.50 g???( give or take some cents on the scale,... I’m charging my batteries to give it a more accurate read) any thoughts? I’d appreciate very much any feedback... ty - John

 

Start your own unique thread with pictures.. Must have pictures!

 

Looks like a cooper wash coin. Sometimes when they do final annealing they dont fully wash out the tank in which the coins are heated to 1000+ degrees. When this happens if the coins run through it last are bronze or at least copper cored, the leftover particulates from them settles during annealing of the new batch and bonds to the outside layer. It is called an improperly annealed planchet and/or sintered planchet as the same thing can also happen when impurities from the premint planchet production rise to the surface and uniformly cover the top side and edge only where they oxidize under the heat and turn red, green, black, tan, or some other colors are rarer as well. The key to eliminating this as the case is to verify if the mint luster is still evident. These are also quite valuable depending on the errors frequency that year. You can look up the old BLACK BEAUTY QUARTERS and see what I mean.

 

Look at my avatar picture, look similar?

 

So a full copper quarter weighing 5.7 gs is worth something?

 

So a full copper quarter weighing 5.7 gs is worth something?

 

So if I have a copper quarter that is clearly copper from every angle and weighs 5.7 grams what’s that mean

 

So if I have a copper quarter that is clearly copper from every angle and weighs 5.7 grams what’s that mean

 

It probably means you have an environmentally-damaged quarter. Your best bet is to start a new thread, with clear photos of both sides and the edge.

Welcome to CoinTalk!

 

FYI.

Numismatic research has shown that the sintered copper (or other metal) is not the cause of improperly annealed blanks. It’s caused by processing errors in the temperature/atmosphere of the annealing ovens. Just want to clear up that misconception

http://www.error-ref.com/?s=improper+annealed

 

It means that further tests must be conducted to confirm that it really is copper, because appearances can be deceiving. A quarter that is "clearly copper" from every angle would be very suspicious because missing clad layer almost never occur on both side of a coin, and if they do, the piece is almost invariably severely underweight. Two things that can cause a quarter to appear "clearly copper) when it isn't are environmental damage, or someone copper plating it. Both of these would most likely be unmasked by an XRF gun test as it would return a high nickel content result.

 

The quarter is supposed to weigh 5.7.
If it were missing a clad layer to show the exposed copper it would weigh less.
Your quarter is just rusted. This is what a copper quarter looks like.

 

Sure.. 25 cents

 

Ive found dimes dipped in acid before in my crh but when you find clad coins that have been in the ground for a couple years the clad layer wears off and they are red.