Post a Toned Coin

1912 quarter eagle, PCGS AU-50

 

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Wow Golden Gold toner
Nice.

 

never seen gold tone this color... what was it stored in ?

 

Something containing sulfur, paper envelope perhaps. Gold can form a sulfide compound just like silver to generate toning, but it's much less common. The usual color progression is orange - red - purple - blue, with orange being relatively uncommon and blue very rare.

 

I really doubt the gold has anything to do with the toning. It is the copper mixed with the gold that is reacting.

 

That and the image was taken a bit warm.
Pretty coin.

 

Picked up 56 toned proof set from my LCS. Took the guys chicken and got this for only 20 bucks.

 

Nice RPD that 6 is really freaky love it sweet!

 

It is a freaky coin. Contemporary copy.

 

This is always a contentious debate, but gold can readily form a gold-sulfide compound on its surface and tone on its own. Even .9999 fine gold coins can tone.

 

Oh that explains it..... duh as I've never seen one like it before.

 

2012 UNC Washington New Mexico

Showing golden toning along the edge on both sides

 

5th coin down. I'll buy it. lol