[meteorite-list] looking for classification advice for fresh find

[James Baxter]

Hi Rob, Greg, 

That really does look like a fall; beautiful stone.

It reminds me of Bensour a bit, although I didn't see evidenve of brecciation which is pretty prominent in the Bensour I have seen. Any chance it could be from that fall?

Regards,
Jim Baxter
----- Original Message -----
From: "Greg Hupe" <gmhupe at htn.net>
To: "Rob Lenssen" <rlenssen at planet.nl>, Meteorite-list at meteoritecentral.com
Sent: Tuesday, August 18, 2009 11:54:50 AM GMT -08:00 US/Canada Pacific
Subject: Re: [meteorite-list] looking for classification advice for fresh find

Hello Rob,

That is a very nice and fresh stone. I would say it does not represent any 
of the recent NWA falls. I would send it in to have it classified, and 
request the classifying scientist to have the terrestrial age dating 
performed by an approved lab. Obviously it will not get a distinct name 
without witnesses and GPS coords, but I think that it would be worth 
classifying.

Good luck with it!

Best regards,
Greg

====================
Greg Hupe
The Hupe Collection
NaturesVault (eBay)
gmhupe at htn.net
www.LunarRock.com
IMCA 3163
====================
Click here for my current eBay auctions: 
http://search.ebay.com/_W0QQsassZnaturesvault



----- Original Message ----- 
From: "Rob Lenssen" <rlenssen at planet.nl>
To: <Meteorite-list at meteoritecentral.com>
Sent: Tuesday, August 18, 2009 2:43 PM
Subject: [meteorite-list] looking for classification advice for fresh find



> Dear List,

>

> I received a new meteorite directly from a Moroccan dealer last week, that 

> looks remarkably fresh.

>

> The dealer told me the 314g stone was broken in (three) fragments by the 

> nomad who found it. Also the name of the town of find was provided.

>

> My first thought was that it would be one of recent years falls.

> The dealer insists it's not.

> As I thought the price to be OK, I decided to buy.

>

> I "studied" the pieces, and compared them to my Bassikounou:

> The material looks whiter than Bassikounou (that again looks whiter (less 

> grey) than Chergach to me).

> It has a lot of free iron (more than visible in the photographs) and few 

> visible larger chondrules.

> Based on the free iron, I would not expect it to be LL like Bensour.

> Tested with a magnet, it is attracted strongly, but slightly less than 

> Bassikounou an H-type chondrite.

> And last, the crust has almost no dust (fine sand) contamination, like 

> Bassikounou typically has.

>

> My question is how to deal with this stone, with respect to 

> classification.

> Does this stone deserve more than the standard NWA classification?

> Should for instance terrestrial age be determined?

> I would appreciate some guidance from List members who are 

> (professionally) involved in meteorite research.

>

> http://home.planet.nl/~rlenssen/314g/314g-NWA.html

>

> Kind regards,

> Rob Lenssen

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