You could also take a quick tour through Heritage or Stack's websites and look at the silver coins in auctions. The vast majority will not designate that a coin is naturally toned. That will tell you that your dollar is fine.
Lots of reading, "Conder101" where art thou. Unless I missed it his last post about the updating of slabs stopped in 2008. Still looking for the most recent info. about NGC slabbing, but what a lot of great stuff.
But it's implicit that toning is deemed "natural" for that TPG's market and that's all that market is interested in, really. I'll say this, too, that MS62 grade, i.e., a "market grade," presumably incorporates the toning. The toning, in other words, factors into market grades. The market may bid the coin higher or lower than the TPG's price guide for the toning but that's just how the bidders in fact are factoring-in the toning. I don't know, does that make any sense?
I disagree! "Market grading" has nothing to do with toning. Toning is an attribute that may be identified by NGC with a star (*). Chris
The star on NGC graded coins is not to identify any kind of toning. From NGC web site: NGC assigns a to coins with exceptional eye appeal for their assigned grade. Eye appeal is the most subjective attribute of a coin, but there are norms and standards shared by numismatists. Exceptional eye appeal may include attributes such as vibrant, colorful toning; intense luster; or, in the case of Proof coins, especially strong cameo contrast. To receive a , coins must be free of any obvious planchet irregularities, and display no bothersome spots or blemishes. Toned coins can be of a single color or multicolored but cannot have any areas that are dark brown, approaching black.
That is why I, in my own personal opinion, think toned coins are quite unique. I got this one last year and have been offered three times the price I bought it for. I'm keeping it because of it's look.
He's talking about doctoring coins with chemicals. However, the electric blue toning on yours is sometimes referred to as Tid-E-Bowl toning. Decades ago, the company that produced Tid-E-Bowl had a promotion with Morgan dollars mounted on a cardboard holder which contained sulfur. Chris
H2S is hydrogen sulfide. Sulfides are one of the main radicals that produce colors beyond the 'silver' color of silver. They are found in the atmosphere in different proportions depending on the environmental contamination ( such as in coal or petroleum powered ) areas. So only the poster knows if he was suggesting it was toned by artificial means ( not proper for grading) or as a straight statement which is usually true, although if continued, will damage and pit the coin significantly ( Black)
I meant naturally occurring hydrogen sulfide. I wasn't implying it was artificial (it could be, but I don't know how to tell). It is very nice regardless!
I beg your pardon? You said market grading has nothing to do with toning. That's flat-out wrong. Market grading has everything to do with eye appeal and toning is eye-appealing. Give it a rest before you really piss me off.
All great information. The next question would then be, "is it possible to tell if a coin is NT compared to AT" and could this be positively proven in a laboratory ? I mean, how do you really know if someone screwed with the coin?
Telling the difference between NT & AT is still a bit subjective. Of the two biggest grading services, NGC & PCGS, I've had coins submitted to NGC deemed AT but when submitted to PCGS, deemed NT and vice versa. I'm not an expert, so someone can chime in if I'm wrong, but in simple terms, natural toning occurs when a chemical bonds with a reactive metal over a period of time while artificial toning appears to be "painted" on the surface. Chris
I also think for rainbow toned coins the order in which the different colors are matters (?). I'm not entirely sure about this, but it's a moot point since I wouldn't call the Morgan rainbow toned.