[meteorite-list] Tektite with metal?

From: Norm Lehrman <nlehrman_at_meteoritecentral.com>
Date: Wed, 4 Feb 2009 22:30:31 -0800 (PST)
Message-ID: <654949.71232.qm_at_web81006.mail.mud.yahoo.com>

All,

The material pictured is just an iron oxy-hydroxide mixture ("limonite" works okay) that occurs naturally in lateritic soils. It is quite common on tektites from some localities. If you want to clean it, just soak the tektite in HCl for a week or two. It will then be easily picked or washed out---

If it is any consolation, when I first got started with tektites I hoarded pieces like that, also thinking they might be related to the famed Fe-Ni inclusions. No such luck.

Cheers,
Norm
(http://tektitesource.com---still on hold in our absence from the USA)


--- On Wed, 2/4/09, Eric Wichman <eric at meteoritewatch.com> wrote:

> From: Eric Wichman <eric at meteoritewatch.com>
> Subject: Re: [meteorite-list] Tektite with metal?
> To: meteorite-list at meteoritecentral.com
> Date: Wednesday, February 4, 2009, 9:45 AM
> Phil, That's the closest thing I've seen. That might
> be it.
>
> Eric
>
>
>
>
>
> Phil Morgan wrote:
> > Eric, I believe what your seeing is the same thing
> (maybe polished
> > somehow) as what I've heard this referred to as
> Limonite. Here is an
> > example. http://www.tektiteinc.com/104grams.html
> >
> > I have very similar examples and it is very hard
> stuff.
> >
> > Phil
> >
> > On Wed, Feb 4, 2009 at 9:42 AM, Eric Wichman
> <eric at meteoritewatch.com
> > <mailto:eric at meteoritewatch.com>> wrote:
> >
> > Sean,
> >
> > Unsure of whether it is metal... it resembles
> metal, but is not
> > magnetic. I've tried using a small pick to
> remove it and even a
> > stainless steel wire brush and no luck. It's
> not soil of any kind.
> >
> > I'll try to get some 10X magnification
> photos...
> >
> > Eric
> >
> >
> >
> >
> >
> >
> >
> > T. Murray wrote:
> >
> > Eric - are you sure that is metal? I'm
> curious to know if a
> > magnet sticks to it... Most of these that I
> have seen are
> > compacted soil/minerals that are attached to
> the tektite.
> > Kind of like caliche.
> >
> > I have a bunch of tektites with those kinds of
> "inclusions" -
> > but they are all local material that has just
> gotten stuck in
> > the weathered surface of the tektite. I
> usually leave them in
> > as it is an indicator of the soil/material
> where the tektite
> > was found.
> >
> > ----- Original Message ----- From: "Eric
> Wichman"
> > <eric at meteoritewatch.com
> <mailto:eric at meteoritewatch.com>>
> > To: <meteorite-list at meteoritecentral.com
> >
> <mailto:meteorite-list at meteoritecentral.com>>
> > Sent: Wednesday, February 04, 2009 10:40 AM
> > Subject: [meteorite-list] Tektite with metal?
> >
> >
> >
> > Hey all,
> >
> > On my recent adventure to the Tucson show
> I purchased many
> > meteorites and about 6 kilos of tektites,
> in the batch of
> > tektites I found an odd piece. Now I'm
> very familiar with
> > chondrites but know little to nothing
> about tektites. Can
> > someone please tell me what I'm
> looking at here.
> >
> > It's an odd piece. It appears to be
> metal embedded in the
> > tektite in two places. This is the only
> piece I have that
> > exhibits this inclusion. Is this a natural
> inclusion that
> > formed after the tektite was formed or is
> it just
> > something "stuck" in the
> tektite???
> >
> > The piece is about 34 grams...
> > http://www.meteoritesusa.com/tektites.htm
> >
> > This is bugging me because I can't
> find any info on it and
> > I'd like to know if this is normal for
> a tektite or just
> > some fluke oddity.
> >
> > Regards,
> > Eric
> >
> >
> >
> ______________________________________________
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> >
> >
> >
> >
> > --
> > Regards,
> > Eric Wichman
> > Meteorites USA
> > http://www.meteoritesusa.com
> <http://www.meteoritesusa.com/>
> > 904-236-5394
> >
> >
> > ______________________________________________
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> >
> >
>
> --
> Regards,
> Eric Wichman
> Meteorites USA
> http://www.meteoritesusa.com
> 904-236-5394
>
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Received on Thu 05 Feb 2009 01:30:31 AM PST