[meteorite-list] Strange Rock Reports Decrustified Meteorites

Michael Murray mmurray at montrose.net
Thu Sep 17 19:33:46 EDT 2009


"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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