Canada Elizabeth II on 1 cent coin Pink Stars change to White Silver Shade Raining Surfaces

[thecollectible8]

Please check it out on the scans below and let me knows of what you think there

[john9112001]

The coin is copper plated zinc, looks like someone tried to chemically remove the copper plating, so now the coins has unnatural toning.

[*smedley*]

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@john9112001 wrote:

The coin is copper plated zinc, looks like someone tried to chemically remove the copper plating, so now the coins has unnatural toning.

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copper plated steel since 2000...

[john9112001]

Smedley, for the coin shown, 2005, were minted in both copper plated zinc or steel. From Charlton Canadian coin book: "Uncrowned portrait, Maple twig design, copper plated zinc 2003 - 2006" This coin has NO "P" mint mark, such as the coin shown in the OP photo. 

The 2005 P is "Uncrowned portrait, Maple twig design,  plated multi-ply plated steel,  2003 - 2012"  This coin has a "P" mint mark.

The copper plated steel started in 1999 - 2012. and all the steel cents have the P, WP or the mint logo on them. The zinc cents, for those years, have NO mint marks, with the exception of the 2006 W, 2007 W, 2011 no mint mark nonmagnetic,  2012 W, which was minted in both magnetic and non magnetic. There is even a 2006 no mint mark nonmagnetic and a 2006 no mint mark magnetic.

[john9112001]

The Canadian one cent coins from 1999 - 2012 gets complicated as to zinc or steel, mint mark or no mint mark or combinations thereof. There may even be some mint errors like the US one cent for 1943 and 1944 mint errors.

[*smedley*]

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@john9112001 wrote:

The Canadian one cent coins from 1999 - 2012 gets complicated as to zinc or steel, mint mark or no mint mark or combinations thereof. There may even be some mint errors like the US one cent for 1943 and 1944 mint errors.

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true, but when you hear hoofbeats think horse, not zebra... unless you live in Africa...

[john9112001]

The coin shown in the OP photo is a 2005 no mint mark one cent. So it is a copper plated zinc coin, my statement was correct. Not all coins from 1999 - 2012 are copper plated steel. Regardless if the coin in question is zinc or steel, it still looks like to me, someone tried to chemically remove the copper plating.

[elheron-grande]

Yes, there are many ways to cause a coin to change colors.  Heron has 'reported' this

in the past, however, during Heron's metal shop days in H.S. we would fire up the forge

and drop Cent pieces or Nickels or Dimes into the fire to see what would happen.

(The forge was a small style and fired with 'coke' (not the sniffing kind but the fuel

  kind).  There was also a manually operated 'fan' that could create a flow of air that

  caused the coke to burn red hot).

Some of the coins would have some spectacular colors and some were just drab

after a heat treatment on the small forge.   However, it was educational. 

[*smedley*]

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@elheron-grande wrote:

Some of the coins would have some spectacular colors and some were just drab

after a heat treatment on the small forge. 

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sometimes on ebay you can see sellers who have a mess of "monster" toned coins that all look quite similar...

you can bet your bottom dollar that they were cooked...

on occasion the seller will say in the description that's what they did... even so, i'm sure many of those are bought to resell at ridiculous asking prices...

[john9112001]

Yes, there is one seller on eBay that has a lot, if not all, the coins he sells that were "shake-n-bake" He's got a lot of negative feedback for artificially toned coins.

[thecollectible8]

These normal coin has Pink natural colour toning shade but certainly not the fake toning shade that you mean because you will never seen any other coins that has Pink toning shade likes these for sure to be honest with you and for Pink Stars toning shade change to White Silver on the surface which is so beautiful exactly likes piece of Pink Diamond suggest you should try to burn your coins with fire cigarette smoke bakes in microwave Owen under hot sun use chemical water on the surface and your coins likely will get fake slight ugly Toning as artificial toning colour shade right on the surfaces without Pink Shade likes these piece The Pink Stars change to White Silver at difference angle viewing under bright white light is interesting shade there are plenty of straight lines across entire surfaces on both sides which is rare or common thing happen and how are you going to explain it anything for sure there

[elheron-grande]

Thank you for the interesting essay!  Heron has not 'cooked' any coins since 1953.

Some of the more modern alloys will no doubt create some different colorations

after being 'cooked' (here in 2020).   

(Heron can advise that cooking aluminum coins will create some spectacular 

 colors, especially green and blue hues.   Very pretty flames.  Although the coins

 themselves are generally reduced to a melted nugget of aluminum).  

[john9112001]

Who know what was done to that 1 cent coin, it is certainly post mint damage, environmental, chemical or heat.

[agathetyche]

There are reference books that will tell you how to create any color patina on bronze, from hot pink to midnight blue. All you need are some basic chemicals. 

[thecollectible8]

Believe there is another similar coin with Pink Toning shade exactly likes these from someone for sure there