I agree Matteo,
I have never bought a Brenham. It would be a waste of money.
I have cleaned and sealed my Canyon Diablos, Sikhotes and Campos in exactly
the same manner.
The Cd's and Sikhotes held up well but my Campo continues to disintegrate no
matter what I do.
Those desiccant bags are useless.
The sad thing is it was my first meteorite. The reason for my obsession.
Here it is, and it isn't pretty :
( New Collectors beware. Viewing this may cause you to collect only stony
meteorites )
http://pg.photos.yahoo.com/ph/spacerox2001/album?.dir=/8a8fre2
Bob
----- Original Message -----
From: "M come Meteorite Meteorites" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Monday, November 06, 2006 3:43 PM
Subject: Re: [meteorite-list] Brenham Instability Myth
my Brenham slice its go totaly destroy....never buy
another
Matteo
--- McCartney Taylor <[EMAIL PROTECTED]> ha
scritto:
As long as Ghubara stability is being knocked
around, I'd like to
address Brenham. I'm currently writing a paper on
the stability of
Brenham, and thought I reveal a quick peek here on
how this pallasite is
actually stable.
Brenham has acquired a bad reputation on stability.
This reputation is
more myth than fact. The myth really began with the
'meteorerodes'
Nininger excavated from the alleged 'Haviland
crater'. These meteorites
were soaked in a nickle-leaching, electrolysis
accelerating soup for
10,000+ years. Corrosion had already advanced to a
point of leaving
shale balls. Nininger then shared these rotten
pallasites with other
institutions. So the myth began...
Yet, a few hundred yards away, rock stable Brenhams
were found (the 750
pounder). Hint-don't buy water logged pallasites.
Several collectors have stable Brenhams, some with
and some without
sealing. So empirical evidence supports this
conclusion.
My paper will address the fundamental corrosion of
all iron meteorites,
including Brenham. In a nutshell, its all about
water and oxygen.
Brenham is not a chloride attacked meteorite. It is
complicated by
sulfides that induce an electrolytic effect.
Brenham has a higher
porosity between the olivine and metal. If the
natural soil moisture
water is not removed effectively, they will rust.
If it is removed,
then properly sealed from Oxy and water, it's rock
stable. Even the
unaltered core of a badly eroded 'meteorerode' will
be stable after
being desiccated by vacuum then impregnate sealed
with Opticon.
Anyone who doesn't seal their irons from Oxy and
water is playing dice
against time. You will lose eventually. Be it Esquel
or Canyon Diablo.
Just don't blame the iron for rusting because you
didn't seal it. We
have enough myths in this business as it is.
McCartney Taylor, IMCA 2670
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M come Meteorite - Matteo Chinellato
Via Triestina 126/A - 30173 - TESSERA, VENEZIA, ITALY
Email: [EMAIL PROTECTED]
Sale Site: http://www.mcomemeteorite.it
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