[meteorite-list] A Rare Arizona Meteorite Find

From: Jeff Kuyken <info_at_meteoritecentral.com>
Date: Tue, 6 Oct 2009 19:17:54 +1100
Message-ID: <8DB721F1B0D44C988F1F0D96EBF2EBDE_at_JeffPC>

Hi Bernd & Ruben,

The problem with a Ureilite is that I believe metallic iron/nickel is in
relatively small amounts in them. It usually forms small veinlets around the
grains and are the first thing to weather away (low nickel content) and
often lost in slicing too. Because of this only VERY fresh Ureilites
generally have these.

http://www.meteorites.com.au/features/nwa2705.html

NWA 2624 for comparison:

http://www.meteorites.com.au/features/nwa2624.html

Cheers,

Jeff



----- Original Message -----
From: <bernd.pauli at paulinet.de>
To: Meteorite-list at meteoritecentral.com
Sent: Tuesday, October 06, 2009 9:32 AM
Subject: [meteorite-list] A Rare Arizona Meteorite Find


Ruben wrote: Ureilite maybe?

Hi Ruben and List,

Yes, maybe a ureilite like the Hup?s' NWA 2624 but where are the triple
junctions?
You would expect a lot of olivine grains with "sets" of three olivine grains
that meet
in triple junctions of 120? (3 x 120? = 360?).

Bernd

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Received on Tue 06 Oct 2009 04:17:54 AM PDT