1812 Gold question
habaraca
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What is causing the reddish tint on this gold piece?
1
habaraca
Posts: 2,009 ✭✭✭✭✭
Comments
Probably the copper in the alloy.
I've seen two types of reddish color on gold. This is one. I call it toning and it can be proved that some of it is from the copper in the alloy. The other is darker and can be flaked off or removed chemically. It occurs on gold found in the ground or sea salvage.
I've seen a third type of reddish color on gold coins- iodine added to the surface. But that doesn't appear to be the case here.
Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.
I've seen a 4th type. Strawberry jam from a sloppy dealer eating a sandwich.
Looks like common gold toning. Gold does not tone to any far extent but the reddish glow gives credit to the originality similar like a dark crusty bust half.
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buy more of my coins so I can> @Pnies20 said:
Remember the gold coins in the Boscoreale treasure. Some, or all, had red toning which is different from the ones mentioned above.
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I do not see red per say, I see copper colored toning