[meteorite-list] Odd layered feature in NWAXXX specimen

[STARSANDSCOPES at aol.com]

Tracy,  I am always on the lookout for odd  or unusual meteorites in piles of 
unclassified.  Out of nearly 1000 Kg I  have found two stones that match this 
description.  I don't have any  micrographs at the time but I have examined 
them in high magnification and they  are stone meteorites.

Keep that one,  I think that a very different  process was at work.

Tom Phillips

In a message dated 9/30/2008  10:15:12 P.M. Mountain Daylight Time, 
meteoriteguy at yahoo.com writes:
Tracy, I  have seen this before in extremely old weathered pieces, especially 
in iron  meteorite shale, the layering is normal. 
Mike



--- On Tue,  9/30/08, tracy latimer <daistiho at hotmail.com> wrote:

> From:  tracy latimer <daistiho at hotmail.com>
> Subject: [meteorite-list] Odd  layered feature in NWAXXX specimen
> To:  meteorite-list at meteoritecentral.com
> Date: Tuesday, September 30, 2008,  10:11 PM
> I was going through a batch of unclassified NWAXXX rocks  and
> putting the small ones in mylar baggies for giveaway.   One
> of the specimens caught my eye; surface features make it
>  seem to have many thin layers, like slate or shale.  It is
>  attracted to a magnet, so chances are good it really is a
> meteorite and  not an erratic that got tossed into the
> hopper, but I am at a loss as to  what might naturally
> produce this type of effect.  Any  ideas?
> 
> Tracy Latimer
> 
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