[meteorite-list] message from Vincent Jacques

[Zelimir Gabelica]

Hi List,

Vincent Jacques, who is not able to send posts 
right now, asked me to forward you the following message:

Happy speculations...

Zelimir
----------------------------
Dear listoïdes

I would be very curious to have your ideas about 
the following meteorite, here above the story:

In 2002, I have purchased a mix meteorites- earth 
stones from a Moroccan dealer during the 
Brussel’s mineral show. 60% of them was 
meteorites (many chondrites, one little eucrite, 
and some magnetics strange stones,  terrestrials 
following my desert & meteorite experience)

One of them showed a very strange 
lithology.  Earth rock or meteorite? My first 
impression after cutting was “a simple rock from 
Sahara”
 but
 a little magnetic attraction on one 
side and some cm² of very thick chocolate 
alteration on other side (old fusion crust?) asked to more investigations.

The first question: “Meteorite or not?” has been 
resolved in 2006  by prof Jedwab (University of 
Brussel’s)  during a quick microprobe 
analysis.  “With lot of hesitation, it’s a 
meteorite, congratulation”   He said: “probably a 
very very old weathered chondrite, no 
interesting
 perhaps achondrite, but my analysis 
is not perfect. I found only one little Fe-Ni 
flake.  I think that was a mud aggregate, but it’s a meteorite”

Other visual submission to prestigious 
institutions was blocked during the first 
contact: “Oh, if it’s a meteorite, it is so 
weathered, no interest to study it
 probably a little ordinary chondrite.”

Recently, I have submitted a fragment of this 
“rejected ugly meteorite” to a Belgian 
laboratory, who studies several meteorites 
including Antarctica meteorites from summer 2009-2010 collect.

The first result is fall some days later: The 
meteorite is very close to ureilite group, but
 
there is a little problem. It contains an unusual 
part of pure carbon. Analysis continues at this time.

We have searched equivalent meteorites, without 
result, except for Almahata Sitta meteorite.

On internet, the following link shows a 
electronic photo of Almahata sitta.  Photo's are 
very similar. Please, compare it with following 
electronic pictures of my “rejected meteorite”.

Almahata Sitta electronic photos (scroll the screen):
<http://www.universetoday.com/2009/03/25/meteorites-found-in-africa-from-first-predicted-asteroid-hit/natureasteroids3/>http://www.universetoday.com/2009/03/25/meteorites-found-in-africa-from-first-predicted-asteroid-hit/natureasteroids3/

My “ugly meteorite”
<http://www.heberger-image.fr/view.php?image=96119_kkc01.jpeg>http://www.heberger-image.fr/view.php?image=96119_kkc01.jpeg

Electronic images of my  “ugly meteorite” :
<http://heberger-image.fr/album_user_view.php?nom_album=Carbon%20rich%20ureilite&id_view=c2aee86157b4a40b78132f1e71a9e6f1>http://heberger-image.fr/album_user_view.php?nom_album=Carbon%20rich%20ureilite&id_view=c2aee86157b4a40b78132f1e71a9e6f1

Each square and reticule corresponds to an 
analysis area. Result on request by square if you are interested.

I would be very curious to read you.

Best regards,

Vincent






Prof. Zelimir Gabelica
Université de Haute Alsace
ENSCMu, Lab. GSEC,
3, Rue A. Werner,
F-68093 Mulhouse Cedex, France
Tel: +33 (0)3 89 33 68 94
Fax: +33 (0)3 89 33 68 15