[meteorite-list] R: acid for pallasite

[Francesco Moser]

NoNoNo I don’t want to destroy anything! :)

I have here a small slice of Seymachan, I don’t know why but it rusts.
The rust rise between the olivines and the iron matrix. So some olivines
fell down.
I want to put the olivines back in them “slots” and put some little drops of
glue.
But also on the olivines there’s rust and some iron particles, so they are a
little bit bigger than the slots!
I want to put just the olivine inside the acid for remove the rust and
restore the original dimension.

Do you think the Iron chloride could also work (for electronic purposes)?
I have also here Phosphoric acid 12% and pure Citric acid, could I use some
of them?




Thanks to all for the answers! 



 

<x>x<x>x<x>

Francesco

 

Da: Meteorite-list [mailto:meteorite-list-bounces at meteoritecentral.com] Per
conto di CRAIG MOODY via Meteorite-list
Inviato: martedì 20 settembre 2016 17:49
A: Met-List <meteorite-list at meteoritecentral.com>
Oggetto: Re: [meteorite-list] acid for pallasite

 

The very thought of it makes me cringe.  The chances of getting crystals
worthy of gem-stones, is slim.  IMHO it would be sacrilege to destroy one of
the most beautiful meteorite types, for a few gems and a little cash. 

On 09/20/16, Gmail via Meteorite-list <
<mailto:meteorite-list at meteoritecentral.com>
meteorite-list at meteoritecentral.com> wrote:

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 <
<mailto:meteorite-list at meteoritecentral.com>
meteorite-list at 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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