[meteorite-list] photo link - a cosmic marble

From: M come Meteorite Meteorites <mcomemeteorite2004_at_meteoritecentral.com>
Date: Sun Nov 13 16:35:29 2005
Message-ID: <20051113213526.75485.qmail_at_web26213.mail.ukl.yahoo.com>

Its the same I have say when I have cut my NWA 2179 -
its a LL3 - but after the analysis the laboratory have
say its a H3.

NWA 2179

? Found 2003

? Ordinary chondrite H3

Several stones weighing in total 367.2 g was bought at
Erfoud market by an anonymous buyer. Mineralogy and
classification (G.Pratesi, V.Moggi Cecchi, MSP)): the
meteorite consists of chondrules 500-700 ?m in size,
of different types (PO, POP, BO, RP) and their
fragments embedded in a fine-grained matrix; olivine
is Fa0.81-18.38, with an average of Fa6.68; two
clusters of analyses, with mean values at Fa1.53 and
Fa12.02, respectively, can be delineated for chondrule
olivines, pointing to a classification as H chondrite.
Low-Ca pyroxenes range from Fs6.13En93.07Wo0.80 to
Fs21.01En78.17Wo0.83, in good agreement with olivine
data; minor phases are pigeonite, kamacite, taenite
and troilite; some olivine grains in BO and PO
chondrules are markedly zoned and contain a glassy
mesostasis. Compositional data on olivine point to a
petrological subtype <3.5. Weathering grade is W2;
shock stage is S1. Specimens: one thin section and
29.4 g, MSP; main mass (88.8 g) with anonymous buyer.


Matteo

--- Michael Farmer <meteoritehunter_at_comcast.net> ha
scritto:

> That is no H3. I would say LL3 or LL4.
> Mike
> ----- Original Message -----
> From: "M come Meteorite Meteorites"
> <mcomemeteorite2004_at_yahoo.it>
> To: <meteorite-list_at_meteoritecentral.com>
> Sent: Sunday, November 13, 2005 1:42 PM
> Subject: Re: [meteorite-list] photo link - a cosmic
> marble
>
>
> > probably its a H3, take a look to this
> >
> >
>
http://it.geocities.com/mcomemeteoritecollection/NWA2179.JPG
> >
> > the matrix of this, not visible in this photo, its
> > full of little chondrules multicolor.
> >
> > Matteo
> >
> > --- Stefan Ralew <stefan_at_meteoriten.com> ha
> scritto:
> >
> >> Hello Mike, Bernd and List,
> >>
> >> as Bernd already has written, this possible
> >> macrochondrule has approx. 13 to
> >> 14 mm in diameter. This strange looking
> >> macrochondrule is not the only
> >> unusual feature in this meteorite. Below I have
> >> links to some more photos.
> >>
> >> Photo of a triangular, greenish-darkgray
> inclusion:
> >> http://www.meteoriten.com/L-breccia-detail7.jpg
> >> A close up of the inclusion:
> >> http://www.meteoriten.com/L-breccia-inclusion.jpg
> >> some details of the matrix:
> >> http://www.meteoriten.com/L-breccia-detail1.jpg
> >> http://www.meteoriten.com/L-breccia-detail2.jpg
> >> http://www.meteoriten.com/L-breccia-detail4.jpg
> >> http://www.meteoriten.com/L-breccia-detail5.jpg
> >>
> >> I have never seen so a lot of different
> chondrules
> >> in a single meteorite,
> >> any sizes and colors of chondrules from 1 to 15
> mm.
> >> Some areas look somehow
> >> carbonaceous. It`s a crazy piece, and the right
> >> material for spending some
> >> hours on the microscope.:-)
> >>
> >> Best wishes,
> >> Stefan
> >>
> >>
> >>
> >> ----- Original Message -----
> >> From: "Michael Farmer"
> <meteoritehunter_at_comcast.net>
> >> To: "Stefan Ralew" <stefan_at_meteoriten.com>;
> >> <meteorite-list_at_meteoritecentral.com>
> >> Sent: Sunday, November 13, 2005 6:19 PM
> >> Subject: Re: [meteorite-list] photo link - a
> cosmic
> >> marble
> >>
> >>
> >> > WOW, that is so cool! How large is it?
> >> > Mike Farmer
> >> > ----- Original Message -----
> >> > From: "Stefan Ralew" <stefan_at_meteoriten.com>
> >> > To: <meteorite-list_at_meteoritecentral.com>
> >> > Sent: Sunday, November 13, 2005 10:03 AM
> >> > Subject: [meteorite-list] photo link - a cosmic
> >> marble
> >> >
> >> >
> >> > > Dear List Members,
> >> > >
> >> > > I would like to show an interesting photo of
> a
> >> strange round object in a
> >> > > chondrite (currently under study). It is
> >> probably a macrochondrule. I
> >> did
> >> > > not see ever such a chondrule in a meteorite.
> It
> >> is amazing. Please,
> >> > > enjoy:
> >> > >
> >>
> >
>
http://www.meteoriten.com/L-breccia-large-chondrule.jpg
> >> > >
> >> > > Best wishes,
> >> > > Stefan
> >> > >
> >> > > www.meteoriten.com
> >> > >
> >> > >
> ______________________________________________
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> >> > > Meteorite-list_at_meteoritecentral.com
> >> > >
> >>
> >
>
http://six.pairlist.net/mailman/listinfo/meteorite-list
> >> > >
> >> >
> >> >
> >>
> >> ______________________________________________
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> >>
> >
>
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> >>
> >
> >
> > M come Meteorite - Matteo Chinellato
> > Via Triestina 126/A - 30030 - TESSERA, VENEZIA,
> ITALY
> > Email: mcomemeteorite2004_at_yahoo.it
> > Sale Site: http://www.mcomemeteorite.it
> > Collection Site: http://www.mcomemeteorite.info
> > MSN Messanger: spacerocks at hotmail.com
> >
>
EBAY.COM:http://members.ebay.com/aboutme/mcomemeteorite/
> >
> >
> >
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>


M come Meteorite - Matteo Chinellato
Via Triestina 126/A - 30030 - TESSERA, VENEZIA, ITALY
Email: mcomemeteorite2004_at_yahoo.it
Sale Site: http://www.mcomemeteorite.it
Collection Site: http://www.mcomemeteorite.info
MSN Messanger: spacerocks at hotmail.com
EBAY.COM:http://members.ebay.com/aboutme/mcomemeteorite/


        

        
                
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Received on Sun 13 Nov 2005 04:35:25 PM PST