[meteorite-list] A Rare Arizona Meteorite Find

[Jeff Kuyken]

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 Hupés' 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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