[meteorite-list] Etching Nickel Iron Meteorites[and how to etch and polish]

[Email from Chinaren76]

Hi, Dave and listees

I have the same question as yours, Dave. What kind of
acid the advanced meteo-collctors use to etch
Iron-Nickel meteorites, such as Nantans, Campo Del
Cielo? Someone has these pieces presenting beautiful
surfaces, it's amazing!
By the way, Dave, have you had the answer off-list?
Any tips would be greatly appreciated!

Merry Christmas to all

Regards

Miss Ma Lan
Beijing, China

--- David Holden <wv_optics at yahoo.com> wrote:

> I was wondering what kind of acid you use to etch
> meteorites?
>    
>   -Dave H.
> 
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