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What Would Cause A Quarter To Turn Yellow?

 
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Author Previous TopicReplies: 6 / Views: 303Next Topic  
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 Posted 10/28/2020  8:57 pm Show Profile   Bookmark this topic Add MTay21 to your friends list Get a Link to this Message
2017 New Jersey quarter. Thank you.




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 Posted 10/28/2020  9:07 pm  Show Profile   Bookmark this reply Add merclover to your friends list Get a Link to this Reply
Either a well-worn gold plated coin OR a coin suffering from environmental/chemical tarnishing. Both are considered damage, both post mint. No premium.

ša va bien aller
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 Posted 10/28/2020  9:19 pm  Show Profile   Bookmark this reply Add sel_69l to your friends list Get a Link to this Reply
Under the right storage conditions copper nickel (and clad CN) can tone to a beautiful golden yellow color.

From my very basic knowledge of chemistry I would think that a trace of iron sulfide may be present.
Edited by sel_69l
10/28/2020 11:11 pm
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 Posted 10/28/2020  9:46 pm  Show Profile   Bookmark this reply Add Spence to your friends list Get a Link to this Reply
It could be rust from sitting in a water fountain (with a little rust deposited by an iron or steel object on top of this one).
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 Posted 10/28/2020  10:24 pm  Show Profile   Bookmark this reply Add Coinfrog to your friends list Get a Link to this Reply
Agree, just some sort of environmental damage.



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 Posted 10/29/2020  08:00 am  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
Sulfur in the air changes the color. NE coast coins often see this on quarters.
Richard S. Cooper
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 Posted 10/29/2020  09:52 am  Show Profile   Bookmark this reply Add MTay21 to your friends list Get a Link to this Reply
Perfect thanks guys!
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