Featured My Experiment using MS70 Coin Brightener.

Either you didn't understand what I was saying, or you misunderstood what I was saying - so let me try to say it a different way. Yes, I most definitely do care that it does happen. I mean nobody wants their coins artificially toned, least of all me.

The point I'm trying to get across is that if it's something on the coin reacting with the MS70 and causing the color change, or if it's the MS70 reacting with the metal itself and causing the color change - both things, both different causes, would be bad thing. So it doesn't matter which one it is, in other words, who cares which one it is ? The only thing that does matter is that a bad thing is happening.

And just because using MS70 on copper doesn't cause the color change every single time - that doesn't matter either. The thing that matters is that it happens sometimes. Put another way, using MS70 on copper is like playing Russian Roulette. Yeah, sometimes you can pull that trigger and nothing happens - but sometimes something does happen - it goes off ! So if you don't want to play Russian Roulette with your coins, then don't use MS70 on copper - because if ya do that's what you'll be doing.

Now some of your other comments about coin dip and MS70 altering the surface of coins - yes, that does happen, it does alter the surface. And you seem to think that's a bad thing. But I find that to be perfectly acceptable, but then so does just about the entire numismatic community. And the entire numismatic community has found dipping coins to be perfectly acceptable for over 200 years. As a matter of fact, the numismatic community (as a whole) sees dipping coins as being a very good thing. Why ? Because it literally saves coins from certain destruction caused by excessive toning (corrosion). And, it removes unsightly toning and turns an ugly coin back into a pretty coin. How can either one of those things ever be said to be a bad thing ?

What's more, even the TPGs agree with what I'm saying. The thousands, maybe millions by now, of coins that have been sent in to the various TPGs for "conservation" - what do you think they're doing to those coins ? In most cases all they are doing is dipping the coins. In others, they dilute the dip to various strengths. In other cases, they'll do what I've suggested for many, many years, and use distilled water, acetone or xylene or maybe a few other chemical concoctions. But in every case they are literally cleaning the coins - but cleaning them properly.

As for MS70 itself, it is a very, very mild coin dip. If you have a toned coin, as you've seen in your own test, it doesn't remove the toning - but it does often change the color of the toning. But, let's say you have a hazy Proof coin. Nobody likes haze on their Proof coins, just about everybody finds it very unsightly. But if you use MS70 on a Proof coin (clad, nickel, silver, or gold) all that unsightly haze just simply disappears - poof it's gone ! Kinda hard to say that's not a good thing too.

Is that altering the surface of the coin ? Of course it is, but it's altering the surface of the coin in a good way, not a bad way. And it is causing no harm to the coin. In point of fact it's doing a good thing because it is helping to prevent a potentially bad thing from happening to that coin - corrosion .Many, a great many, of the highest graded coins that exist - they've had MS70 used on them. And what's more than that, over 80% of all older coins that exist, including those graded the highest, have had coin dip used on them.

 

Basically the same things that are used to dip any coin - just in different mixtures.

You're quite correct, that is exactly what happens if you use regular coin dip. But if you dilute it correctly, mix it with other things correctly - it simply removes the toning and the original red color is restored.

I also believe that you are correct about MS70, that it is the MS70 itself that is reacting with the copper and causing the color changes. But it only does that with copper, but even then not always.

 

No problem, based on your comments I just wanted to clarify things.

 

Well, maybe MS70 was used on them. But here's the thing, copper coins can and do tone, and tone completely naturally, to various shades of blue and or purple. And a whole lot folks find them highly desirable !

My point here of course is that short of using what they politely call a "coin sniffer" there is no way to tell one from the other.

Yes, but it's difficult at best and a multi-step process.

That may work, but the "while" is almost certainly going to be a looooooong while. And not one I would recommend because the coins would also be very likely to become contaminated with things you'd much rather not have them be contaminated with.

My question to you would be, why bother when the toning may well be perfectly natural to begin with ?

 

Ahhhh - my favorite experiment, dipping half the coin More can and will be learned by doing this than just about anything else. In point of fact it tends to combine several experiments into 1