If you had acess to an X-ray Fluorescence Spektrometer, it would be
very easy:
http://www.youtube.com/watch?v=YQCKqNnPaZA
Better video, but in German
http://www.youtube.com/watch?v=PsWwXXisAr0
A friend of mine e.g. has one at her university
On 19 Jan., 06:11, Dakota Hamill <dko...@gmail.com> wrote:
> http://shorinternational.com/TestGoldMakeSolution.htm
>
> I couldn't find the first site I found some colors on, but they did agree
> on the ones found up above as well. But that also looks like they used
> some sort of aqua regia or had a dichromate salt present.
>
> Now I need to bring a silver coin and some crappy silver trinkets into
> school and drop them in acid to get to the bottom of this or I won't be
> able to sleep all week
>
> BRASS--Dark brown
>
> COPPER--Brown
>
> GOLD--None
>
> NICKEL--Blue
>
> LEAD--Yellow
>
> TIN--Yellow
>
> SILVER (PURE)--Bright red SILVER (.925)--Dark red
>
> SILVER (.800)--Brown SILVER (.500)--Green
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