Cool blue dime!!!!!!!

I’ve got about 7 2018D dimes that are blue as can be if anyone is interested!!

 

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I have a blue and purple clad dime never see before

 

What about a blue and purple clad dime

 

What about a blue and purple dime

 

I have i red and blue dime (a dime that has American spirit) but it lost in my collection

 

I we probably won't ever see it without pictures!

 

People seem to be singing the blues in this thread.

 

I guess I'll join the necro-posters here.

 

The exposed cooper on the edge of the coin has reacted with something to form a blue-colored copper salt. The turquoise color reminds me of copper benzoate or copper sorbate, however it could be one of many other salts.

 

first off, why the H-E double hockey sticks are people always reviving old zombie threads from a decade ago? and to top it off, it's not even revived for any substantial reason "hey look at me" about sums up the posts every time.

Ignored. Nice not knowing ya Marques Brooks!

 

It is hockey season.

 

Agreed, if you can't beat them, join them. A throwback from the Rainbow Blues collection.

 

They Google for whatever they think they're seeing, and Google points them to a relevant CoinTalk thread, with no regard for dates. They land on the thread, read something from the first page that seems relevant, and post their reply.

Since this forum doesn't lock threads after a period of inactivity, there's nothing to stop them. I don't think there should be. I've participated in forums that lock threads after a period of inactivity, or after a fixed period from their start. I like CoinTalk's approach better.

 

Does any one agree with what @Scuba4fun777 said in post #29?

 

We should ask the OP. Oh wait, he hasn't been seen since 2011.

 

I meant copper, not barrel-maker.

 

I was going to reply until I saw it was a necro-thread -- that looks more like the color of nickel salts than copper salts to me, although both can range from green to blue.

 

Thanks Jeff. If the exposed copper on a clad coin reacted like that then would you expect to see it more often or not? Or does it take an unusual trigger in order to happen? I've seen copper cents exposed to battery acid produce a brilliant blue byproduct.

 

I was seeing pale-blue colors while soaking dateless Buffalo nickels in white vinegar (same 25% nickel/75% copper composition as the outer layers of a clad coin).

As I recall, both nickel chloride and copper chloride tend more toward green, but the sulfates (what you'd get from battery acid) more bluish. My memory was that nickel compounds tend more toward blue than copper compounds, but some quick Googling indicates I had it backwards.

 

Unless you’re in the food preservative business, you probably won’t encounter sorbic or benzoic acid (or their salts) in concentrations great enough to react with elemental copper.