[meteorite-list] Brahin stability

From: Tom aka James Knudson <knudson911_at_meteoritecentral.com>
Date: Thu Apr 22 10:28:18 2004
Message-ID: <002801c387b1$5d57c460$f4c143d8_at_malcolm>

Hello List, Have any of you tried VCI with Brahin, if so how does it work?
Thanks, Tom
Peregrineflier <><
The proudest member of the IMCA 6168
----- Original Message -----
From: Sterling K. Webb <kelly_at_bhil.com>
To: Martin Altmann <Altmann_at_Meteorite-Martin.de>
Cc: <meteorite-list_at_meteoritecentral.com>
Sent: Tuesday, September 30, 2003 5:05 PM
Subject: Re: [meteorite-list] Brahin stability


> Hi, Martin,
>
> I bought a 40 gram slice about two years ago from Koutyrev/finmet, who
> advertised that the slicing, etc. was done without any contact with water.
(This
> was before any "new" method.) Beautiful. I put it in an acrylic display
box.
> Three weeks later, it was rusty everywhere. I processed it according to
Steve
> Schoner's method for two weeks, polished it off, baked it in an oven, put
it in
> another acrylic display box which I sealed thoroughly. Three weeks later,
it was
> rusty everywhere.
> I repeated the chemical treatment, but for a much longer time. The
result
> was the same, a rusty Brahin, which is now slowly disintegrating. I think
it has
> another year or two to go before all the iron is gone and I have a box of
> expensive olivine crystals.
>
>
> Sterling K. Webb
> ------------------------------------------------------------------------
> Martin Altmann wrote:
>
> > Hi again,
> >
> > does anyone has experiences with the Brahins from Koutyrev/finmet?
> > He praises them to be totally stable for years (you can put in salt
> > water..), due to a new method.
> > I wonder, how he could know that his method helps, as he uses it
obviously
> > not longer than a year or so (as far as I observed his auctions).
> >
> > >From one of Serge's pieces I grinded off (dry) the glue, for testing,
what
> > will happen. It started immediately to develope rust traces and after 2
> > months, it was so swollen (lawrencite?) that I hid away for not getting
hurt
> > in a potential explosion.
> >
> > Martin
>
>
> ______________________________________________
> Meteorite-list mailing list
> Meteorite-list_at_meteoritecentral.com
> http://www.pairlist.net/mailman/listinfo/meteorite-list
>
Received on Tue 30 Sep 2003 08:17:11 PM PDT