[meteorite-list] CV3: strange inclusion(?)

From: M come Meteorite Meteorites <mcomemeteorite2004_at_meteoritecentral.com>
Date: Fri Apr 8 12:30:36 2005
Message-ID: <20050408163033.62604.qmail_at_web26208.mail.ukl.yahoo.com>

Hello

Yes, probably its a problem of cutting....I remember
when I have seen the same material in a slice of a
lunar meteorite and I have say " wow, metal in a lunar
meteorite ".......

Matteo

--- Martin Horejsi <martinh_at_isu.edu> wrote:
> Hi Peter,
>
> Quite an interesting inclusion you have there. It is
> odd that the saw
> marks appear both before and after the raised
> inclusion, but nothing on
> the inclusion.
>
> Applying the parsimony of science, it appears that
> one of three things
> has happened:
>
> First, the inclusion raised up after the slice was
> cut (by weathering
> or some other process).
>
> Second, the inclusion is harder than the saw blade.
>
> Or third, the inclusion was added or created during
> or after the sawing
> of the slice.
>
> The material appears to be some sort of melt, but it
> has the
> meteor-wrong sheen of slag or welding debris. Since
> the appearance is
> somewhat glassy, and assuming that one of the above
> presumptions is
> correct, I have to go with number three, that the
> inclusion formed
> during the cutting. Maybe the heat of the sawing
> melted a inclusion
> material that then solidified and expanded as the
> saw blade passed.
>
> Just my best guess.
>
> Cheers and thanks for sharing your images!
>
> Martin H
>
>
> On Apr 8, 2005, at 9:22 AM, Peter Marmet wrote:
>
> >
> > Hello list,
> >
> > I bought a slice (80 x 50 mm) of NWA 2224 - a CV3
> - one week ago.
> >
> > It has a strange metal(?) inclusion.
> >
> > Does any list member know what it could be?
> >
> > It is about 0.3mm higher than the surface of the
> cut slice. How would
> > that work?
> >
> > Any help is highly appreciated!
> >
> > Please see it here:
> http://www.marmet-meteorites.com/id1.html (top
> > of
> > page)
> >
> > Thanks!
> >
> > Peter Marmet
> >
> > ______________________________________________
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> >
>
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> >
>
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M come Meteorite - Matteo Chinellato
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Received on Fri 08 Apr 2005 12:30:33 PM PDT