Rainbow Toned coins

Hello everyone...I have a question if anyone would like offer an answer..

I have a few Dansko coin books, quarters from 1932 and roosevelt dimes from 1946 and the coins have been in storage, locked in an air tight container. I have been slowly looking at them, and the quite a few of the dimes and quarters have a rainbow tone on the outside edge, and some have it covering half or most of the coin, mainly on the obverse.

I know for a fact the coins were NEVER cleaned and have been in the albums for a long time. I was just wondering what may have caused this...

thank you for reading my post...any input would be appreciated.....

cpb614

 

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This is absolutely normal and desirable if the colors are nice. This is caused for various reasons. It mostly has to do with storage conditions. Between the air environment and the chemicals in the albums, this will happen. nothing is truly "air tight" when it comes to coin storage.

 

It is just a chemical reaction that occurs over time, especially with old, old coin books. However, this rainbow toning is very desirable.

If you have a really nice 1932D quarter, hang onto it.

 

What is the reason the Rainbow toned coins so desirable? Is it because it tones naturally?

 

Like they said , it's a chemical reaction between the sulfides in the albums the air and the metals in the coin . As Greg said there are no completely airtight containers short of creating a vacuum . Even in the best holders air will get in , if you want the toning to slow down , use some sillica gel canisters to absorb the moisture from the air .

 

I have some other toned coins, Morgans, some ASE's and some nickels, but none toned like these...

 

Do you have any pics ?

 

I will be taking pics soon....

 

Done yet?

 

I just put them all back in the bins, and back in storage I will be pulling them out this weekend...

 

Just curious, are the coins uncirculated? When it comes to toning, especially for Roosevelt dimes, mint state coins with luster are really the only ones that will have a premium of any kind for the toning.

PS: Did you take pics yet?

 

The Dimes are in Dansko books...2 books read Roosevelt Dimes "Proof"
The Quarters are in the same book reading "Proof"

The rest of the ASe's and the Morgans are in slabs already...but there is only a few..

 

Yes, it is considered a natural tone and toning from an album is usually nice and even from the outer rim to the center of the coin.

There was a time that the market only demanded white coins, however that trend shifted to accept toning and even desire it (that may change again, who knows). Generally, evenly toned coins with multiple colors (reds, pinks, purples, greens, blues, yellow, and gold - browns depend, usually not, however) are the most popular.

 

I bet Gregg is losing sleep waiting to see pics (he collects album toned coins) I am impatiently waiting too I love Toners

 

Interesting...I was aware that people were into toned coins, I just wasn't sure that there was a market for them...thank you

 

Learn something new everyday! I have quite a few toned coins, prob 20 or 30...maybe a few more than that, I am still sifting through my collection and opening books and such...

thank you for all your help...

CPB614

 

I just started checking my other Dansko albums, and one of the Eisenhower books has a few very lightly toned coins in it, and one coin in the SBA album also has some tone to it.

I did notice something about the Washington quarter book, a few of the coins have a yellowish tone to them. Does anyone know if this is normal?

thanks again

 

Yes, just toning. I have noticed clad quarters start to yellow first (if not stored to preserve whiteness).