[meteorite-list] Very Rare NWA2828

From: Jeff Grossman <jgrossman_at_meteoritecentral.com>
Date: Sat, 06 Jan 2007 09:40:04 -0500
Message-ID: <7.0.1.0.2.20070106093425.03eb22e0_at_usgs.gov>

They certainly should be considered relict meteorites if there is
evidence that they were once meteorites, although a hunk of Canyon
Diablo iron-shale would not be deserving of a separate name.

jeff

At 09:25 AM 1/6/2007, Jeff Kuyken wrote:
>Hi David,
>
>What about irons & stony/irons etc? How do they fall into the new category?
>There are quite a few shales in collections and I'm curious if they would be
>considered 'relict'.
>
>Cheers,
>
>Jeff
>
>----- Original Message -----
>From: David Weir
>To: STARSANDSCOPES at aol.com
>Cc: meteorite-list at meteoritecentral.com
>Sent: Sunday, January 07, 2007 1:20 AM
>Subject: Re: [meteorite-list] Very Rare NWA2828
>
>
>Tom wrote:
>
> >Isn't this the first fossil meteorite open to the collector market?
>
>Since the new category of relict (or fossil) meteorites was adopted by
>the Nomenclature Committee only this past October, I would imagine there
>are likely other relict meteorites in our collections which have not
>been so designated. The definition requires that more than 95% of a
>meteorite has been replaced by secondary phases since its fall. The
>meteorite Mills comes to mind as a possibility, but maybe its not quite
>there yet.
>
>David
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Dr. Jeffrey N. Grossman phone: (703) 648-6184
US Geological Survey fax: (703) 648-6383
954 National Center
Reston, VA 20192, USA
Received on Sat 06 Jan 2007 09:40:04 AM PST