[meteorite-list] Strange Rock Reports Decrustified Meteorites

From: Michael Murray <mmurray_at_meteoritecentral.com>
Date: Thu, 17 Sep 2009 17:33:46 -0600
Message-ID: <7D789810-079D-4061-B8D9-4CCA69B7E463_at_montrose.net>

"decrustification" I like that word!
Mike in CO
On Sep 17, 2009, at 2:11 PM, JoshuaTreeMuseum wrote:

> Listerians,
>
> I get the feeling that some folks feel that fusion crusts are
> indestructible, or are unfamiliar with crustless meteorites. These
> stones are from 5 different NWA falls. The stone that looks
> remarkably similar to Mike Hankey's slag can be seen next to a
> crusted piece from the same fall. Of course the Hankey Stone
> meteorites would have fresh black crust. If Mike's slag had come
> from NWA instead of PA, I would be inclined to think it's a
> meteorite. If you put these in the bright sun, the metal flecks and
> chondrules are plainly visible.
>
> As to how or why these stones were involved in a process of
> decrustification if beyond me. Maybe it was an extra thin crust.
> Something about the silicate materials? Maybe the crust was eaten
> up by tiny black holes, maybe the spawn of Cygnus X1?
>
>
> http://i190.photobucket.com/albums/z126/tboswell/a.jpg?t=1253217247
> http://i190.photobucket.com/albums/z126/tboswell/b.jpg?t=1253217282
> http://i190.photobucket.com/albums/z126/tboswell/c.jpg?t=1253217307
> http://i190.photobucket.com/albums/z126/tboswell/d.jpg?t=1253217334
> http://i190.photobucket.com/albums/z126/tboswell/e.jpg?t=1253217361
>
> Phil Whitmer
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Received on Thu 17 Sep 2009 07:33:46 PM PDT