AW: [meteorite-list] Dhofar vs. NWA meteorites

[Rob McCafferty]

Bob

I've bought a couple of kilos of unclassifed NWAs to
use as giveaways and to practice cleaning up, cutting
and polishing.
I have noticed that quite a substantial proportion of
the ones I've opened up DO have weathered interiors
and fine shock veins. As a guess I'd say 20-30%. I'd
need to check to be more accurate than that.
I realise I'm only looking at a small sample and am
describing the interiors of less than 50 small
individual rocks but I can assure you it does occur.
It depends on how representative my samples are and
the quantitative definition of "many" vs "few".

Regards Rob

--- "lakewind at infionline.net"
<lakewind at infionline.net> wrote:

> Hi Martin,
> Thanks for your observations on Dhofar vs. NWA. What
> you wrote makes sense. 
> However I still wonder why many of the Dhofar
> chondrites have so many fine
> shock 
> veins compared to the NWAs.  Any thoughts?
> Bob
> 
> 
> Original Message:
> -----------------
> From: Martin Altmann altmann at meteorite-martin.de
> Date: Thu, 8 Jun 2006 14:36:29 +0200
> To: Meteorite-list at meteoritecentral.com,
> lakewind at infionline.net
> Subject: AW: [meteorite-list] Dhofar vs. NWA
> meteorites
> 
> 
> Hi Bob,
> 
> >So we have two reasons:
> The more harsh weathering conditions in Oman
> and a economical one, that from the NWA one sees
> only the tip of the
> iceberg's weathering scale, cause the more rotten
> stuff doesn't sell.
> 
> Buckleboo!
> Martin
> 
> 
> -
> Hi all,
> I've seen a good number of Dhofar and NWA common
> chondrites and 
> I've noticed that there are many among the Dhofars
> which exhibit highly 
> weathered interiors laced with rich, thread-like
> shock veins. These 
> veins seem to be far less common in NWA chondrites
> and I wonder 
> why. Can anyone shed light on this little mystery
> (for me)? Thank you!
> Bob
> ______________________________________________
> Meteorite-list mailing list
> Meteorite-list at meteoritecentral.com
>
http://six.pairlist.net/mailman/listinfo/meteorite-list
> 
> ______________________________________________
> Meteorite-list mailing list
> Meteorite-list at meteoritecentral.com
>
http://six.pairlist.net/mailman/listinfo/meteorite-list
> 
>
--------------------------------------------------------------------
> mail2web - Check your email from the web at
> http://mail2web.com/ .
> 
> 
> ______________________________________________
> Meteorite-list mailing list
> Meteorite-list at meteoritecentral.com
>
http://six.pairlist.net/mailman/listinfo/meteorite-list
> 


__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com