Does this seem like a low price for this coin?

Toning is the formation of an oxide layer on the surface of the metal which is the first step of corrosion. Dipping a toned coin completely removes the oxide layer. Now I ask, which one does more damage?

Ruben, you seem to think that the corrosion once started will spread like a disease. If you remove the coin from the toning source (sulfur), the corrosion process stops completely. The sulfur atoms in the silver sulfide layer do not have the ability to multiply and propagate the corrosion.

If you take a rainbow toned coin, slab it, and store it correctly, the coin will retain the present appearance indefinitely.

 

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Ruben,

Man, stop, and listen, lol. Not all toning is bad! And not all TPG's are bad either! Toned coins are not a danger to collectors, ignorance is. It's the collector's that lack knowledge are the ones that get jipped.

Now there are others out there (scammers) that take advantage of the ignorance of these people, but those are the ones that typically have the knowledge (not all times, but most I'd say). Coin Doctors, while decietful and scammers, are quite knowledgable people. Lehigh knows his stuff, and I wouldn't be quick to second guess him on an area of the hobby that he's mostly dedicated himself too. Sure, he's wrong sometimes, he's human. But, he is an expert when it comes to toned coins, and should be looked at as such. As you know more about medicine probably than he does, take the time to read his posts, and let them sink in.

Respectfully,

Phoenix

 

I don't think he is an expert on anything other than annoying people. Whatever he's got, I don't need. I will never read his posts. I will never talk to him.

respectfully

Ruben

 

Mrbrklyn
Very Bright Child-
Doesn't Play Well With Others-
His overbearing presence on this site is disturbing.

 

Really??? Wow, doesn't that seem childish to you? What happened to turning the other cheek? Lehigh is very insightful, and brings a good bit to this community. I consider him an expert up there with toned coins, like I consider Jack and RLM to be experts with Lincolns? But, I guess if you don't read his posts, you wouldn't know this. However, that is my opinion, and you have your right to yours.

Phoenix

 

I don't know if its childish. Prior to thread he ticked off a half dozen people and then belittled me so I don't need him. Nobody is so important that they are mandated. Not Blomberg, not Nixon and not the unidentified person with the Psnuenom Lehigh.

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Really, the guy is so arrogant that he's been arguing with himself for the last 24 hours. Its like those people who argue with the ELISE bot.

That's pretty brutal. I don't think it is childish to ignore him.

Ruben

 

Phoenix,
Lehigh made this offer to Ruben. Since Ruben has decided to ignore both of us, neither of us can bring it to his attention. If you could copy it, he could see it in your post. That is the only way I know to hush him up.

 

But your not ignoring him, you're constantly talking about him in your posts and then claiming your ignoring him. You may not be able to see what he's writing, but you're certainly not ignoring him. It is quite childish and to be honest, kind of annoying.

 

I didn't see that thread, could you or someone else post a link to it please?

Phoenix

 

Ruben, below I will be posting a quote to one of Lehigh's posts that you didn't see, since you have him on ignore. If you don't want to read it, don't read the quote. If you would like to read it, here it is. I'm only posting this disclaimer so that you still have the choice in reading a post that should probably be brought to your attention, but you still have the option in reading it or not:

Phoenix

 

Now. I wonder if he will read that. TY Phoenix!

 

No I wont read it. BTW - I think that is forum violation on your part.

It's not cool.

Ruben

 

No - I'm ignoring him. I talk about him only when YOU bring him up.



Ruben

 

I'll certainly back you up, Lehigh. Many of us feel you have contributed greatly to this board.

And as for the eye appeal of certain coins, let's go back and look at a certain IHC Lehigh posted recently ...

http://www.cointalk.org/showthread.php?t=42662

If someone doesn't like it, that's cool. To each their own. Some folks like Mozart, some Jimi Hendrix.

But make no mistake... when that 1897 PR66CAM triple*** comes to auction, it will most certainly bring a significant premium due to fabulous color. That is one bomber of a coin.

 

True dat. The oxidizing agent is not a catalyst, it's a reactant. Once it's consumed, it's work is done.

Some of these reactions are extremely slow. It may take a very long time for it to go to completion.

 

Thankfully there is no shortage of oxygen, right. The is an energy of activation involved in all reaction and they continue, thermodynamically speaking, until the difference in entropy of the two states, the oxidized states and the non oxidized state, is equal, and all the entropy (Delta H) difference is released. Until then the reaction continues to do work and release heat.


So in reality, once the reaction starts, it does continue until it is finished. And it is finished when either A) it runs out of oxygen or sulfides or B) it runs out of Silver or whatever metal you have.

If you have any further questions on this, I suggest Adkins
http://ebooks.bfwpub.com/pchemoup.php

or

http://www.amazon.com/Atkins-Physical-Chemistry-Peter/dp/0198792859

But I warn you that you need to have some differential equations under your belt and lineal algebra and calc 3 as well to handle simultaneous integration that is need to keep up with Watts and Gibbs.

Ruben

 

I got all you need Ruben. Here is a photo, Hope you don't mind but I erased my last name.



For those that don't know, Materials Science is seperated into three categories, Metals (metallurgy), Ceramics, and Polymers (plastics). My degree is in metallurgy with a specialization in you guessed it, corrosion.

To quote Ruben "And it is finished when either A) it runs out of oxygen or sulfides or" OK, please explain where the sulfides are coming from if the coin is slabbed and stored properly.

Furthermore, many of the bag toned Morgan Dollars that exhibit rainbow toning sat raw in bank vaults for decades just to form the thin oxide layer that appears as rainbow colors. And these coins had no shortage of oxygen and a direct source of sulfur, not just hydrogen sulfide gas in the atmosphere.

Just because you can throw around some basic knowledge of chemistry & thermodynamics does not mean that you know how to apply that knowledge to a practical application. If you were able to do that, then you would understand why a properly stored slabbed coin will not continue to tone and turn black before your life ends.

I do think that the study of oxidation on silver coins would be a great idea for a PHD thesis. Maybe I will send an e-mail to Lehigh's Materials Science department to see if they can help me out.

 

I was hoping you would answer that one. My P chem is a little on the stale side - well OK it is a lot on the stale side. Come to think of it, it was 50 year ago this year.

 

Thankfully there is no shortage of oxygen, right. The is an energy of activation involved in all reaction and they continue, thermodynamically speaking, until the difference in entropy of the two states, the oxidized states and the non oxidized state, is equal, and all the entropy (Delta H) difference is released. Until then the reaction continues to do work and release heat.


So in reality, once the reaction starts, it does continue until it is finished. And it is finished when either A) it runs out of oxygen or sulfides or B) it runs out of Silver or whatever metal you have.

If you have any further questions on this, I suggest Adkins
http://ebooks.bfwpub.com/pchemoup.php

or

http://www.amazon.com/Atkins-Physical-Chemistry-Peter/dp/0198792859

But I warn you that you need to have some differential equations under your belt and lineal algebra and calc 3 as well to handle simultaneous integration that is need to keep up with Watts and Gibbs.

Ruben