[meteorite-list] meteorite colored etching

[Francesco Moser]

Hello!
Generally for etching meteorite it's used the Nital compound. There are also 
some reagents that produce a colored etching.
Could someone indicate me a link or give me some informations about this 
technique?

I have find these:
Fig. 8 Gibeon, Beraha reagent
http://www.china-metallography.com/china-met02/04-colour/colour017.htm

http://www.metbase.de/gallery/meteorites.html


I would like to try to color etching an end piece of Campo!
But I need some tip...

Thanks a lot!

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Francesco Moser
IMCA #1510