[meteorite-list] follow up on Ziz vs. new iron RFSPOD August 14

From: Meteoriteshow <meteoriteshow_at_meteoritecentral.com>
Date: Thu, 28 Aug 2008 13:24:32 -0000
Message-ID: <004401c90911$6a88bd10$1101a8c0_at_T42>

Dear Svend,

I have read the report of EMTT and i agree with you. I know EMTT and
Emmanuel Dransart, who performed the analyses, the purpose being just to
bring "an opinion on the metallic structure of a meteorite's fragment".
Therefore, a polished and etched surface was observed with a binocular, with
a picture showing the surface that was observed.
The picture displays "a kamacite grain with Neumann lines" and some
"silicated phases, rich in pyroxene and olivine".
The conclusion of Emmanuel Dransart is that it is an Og Octahedrite, such as
Ziz that was also studied at the same lab (EMTT). And as you said, Svend,
pairing with Ziz is not claimed, but as far as the 1st examination can tell,
their grain size are similar and it is the same type.

All the best,

Frederic Beroud
www.meteoriteshow.com
IMCA #2491

----- Original Message -----
From: "Dr. Svend Buhl" <info at niger-meteorite-recon.de>
To: "Meteorite Mailing List" <meteorite-list at meteoritecentral.com>
Sent: Sunday, August 24, 2008 3:45 PM
Subject: [meteorite-list] follow up on Ziz vs. new iron RFSPOD August 14


> to all interested,
>
> The Hmanis asked me to forward a follow up on their new irons including a
> 34kg specimen they had displayed at this year's Enisheim/France meteorite
> fair. One of the new finds acquired from another dealer was kindly posted
> by Michael Johnson as Rocks from Space Picture of the Day on August 14.
>
> M. Hmani informed me that he had meanwhile been issued a "certificate" by
> the Etudes Metallurgiques et de Traitment Thermique (EMTT) which arrives
> to the conclusion that "grain size and structure of the new material is
> identical with Ziz (NWA 854)". Mr. Hmani was so kind to forward me the
> certificate on my request and allowed me to upload the paper on my
> website: http://www.meteorite-recon.com/en/Meteoritensammlung.htm (see
> Inventory # B-0243)
>
> To my understanding the paper states that the questioned iron is an og
> octehedrite such as Ziz. According to the certificate a microscopic
> analysis of an etched surface has been performed but no element mapping or
> neutron activation scan. I assume, the certificate does not intend to
> claim a pairing. Please note that this is my personal opinion.
>
> cheers
>
> Svend
>
> www.meteorite-recon.com
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Received on Thu 28 Aug 2008 09:24:32 AM PDT