What Would Cause A Quarter To Turn Yellow?

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Author	Replies: 6 / Views: 7,199
MTay21 New Member United States 22 Posts	Posted 10/28/2020 8:57 pm 2017 New Jersey quarter. Thank you. Report this Post to the Staff

merclover Bedrock of the Community United States 10635 Posts	Posted 10/28/2020 9:07 pm Either a well-worn gold plated coin OR a coin suffering from environmental/chemical tarnishing. Both are considered damage, both post mint. No premium. Report this Post to the Staff
sel_69l Bedrock of the Community Australia 21786 Posts	Posted 10/28/2020 9:19 pm 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 Report this Post to the Staff
Spence Moderator United States 34397 Posts	Posted 10/28/2020 9:46 pm 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). "If you climb a good tree, you get a push." -----Ghanaian proverb "The danger we all now face is distinguishing between what is authentic and what is performed." -----King Adz Report this Post to the Staff
Coinfrog Bedrock of the Community United States 94367 Posts	Posted 10/28/2020 10:24 pm Agree, just some sort of environmental damage. to the CCF! Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 10/29/2020 08:00 am Sulfur in the air changes the color. NE coast coins often see this on quarters. Report this Post to the Staff
MTay21 New Member United States 22 Posts	Posted 10/29/2020 09:52 am Perfect thanks guys! Report this Post to the Staff
	Replies: 6 / Views: 7,199

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