[meteorite-list] weathering - from the inside out

From: Phil Morgan <roxfromspace_at_meteoritecentral.com>
Date: Fri, 17 Aug 2012 09:30:37 -0600
Message-ID: <CAMpwU7=FArCEd246V0f8b6NrUCUq7h8zFhDTSfCZp8o0X1MgXQ_at_mail.gmail.com>

I've always found it curious that many heavily-weathered small stone
NWA meteorites seem to be most altered at the center.

For example, I've posted a photo showing one where the metal in the
interior has completely weathered away.
http://i25.photobucket.com/albums/c57/pkmorgan/postingpics/whatisit.jpg

Can someone explain the processes behind this in a nutshell?

This is a classified meteorite - anyone want to guess which one or at
least the type?

Happy Friday and Best Regards,
Phil
Received on Fri 17 Aug 2012 11:30:37 AM PDT