Haze vs. toning

39Special

I've noticed on a lot of my older coins (very nice PCGS MS66 quarters and dimes in particular) some light milky areas of what people would commonly refer to as "haze." Thing is, when you tilt the coin from side to side, what first appears as whitish, milky haze when viewed straight on is often a very attractive color such as gold, auburn, violet, or green. My question is this: over time, will this haze develop into the nice toning shades you can see when tilting the coin? Is this the progression of how toning works? If so, how long does it take? Many thanks, 39Special

Leiana

I've got a brown Ike that does that. It turns blue at the right angle.

-Amanda

HTubbs

<< <i>I've got a brown Ike that does that. It turns blue at the right angle.

-Amanda >>




Ikes have some nice haze.

jmj3esq

I have noticed the haze on some of mine too. I have seen it on some of my early commems. They all happen to be in PCGS slabs too. I hope that has nothing to do with it.

GoldenEyeNumismatics

I have a blue mildew like haze on a lot of older proof kennedies.

39Special

Sometimes the haze is actually a bunch of small spots, other times it's more of a thin blanket. The way the color changes when you view from side to side though seems to indicate that the coin is in the process of toning to whatever color is apparent. Don't know how many years this might take! Oh well, if anybody else has insights into this I'd be interested. Thanks!