Depending on the pallasite (is the cost of rehabilitation worth it) and the 
extent of rust damage, you can pursue different options. If there is rust 
between the olivines and iron, you will likely have to use an electrolytic 
process. KD Meteorites are the experts in doing this. If it is just a little 
bit of rust, then relish and then etch with Nital.

Mendy Ouzillou

On Sep 20, 2016, at 10:43 PM, Francesco Moser via Meteorite-list 
<meteorite-list@meteoritecentral.com> wrote:

Hello!
Wich kind of acid I can use for dissolve the iron/rust in a Pallasite, so I
can save the Olivine?


Thanks a lot!

<x>x<x>x<x>
Francesco



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