Ron
These shale pieces are pieces that broke off and were recovered from the
original hole
some are still solid pieces that are highly oxidized.
Like the 11.6 gram piece here
http://www.meteorman.org/Willamette.htm
Tim Heitz
----- Original Message -----
From: "Paul" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Wednesday, November 28, 2007 12:11 PM
Subject: Re: [meteorite-list] Meteorite Shale
Ron asked:
I see some Meteorites for sale, especially the
Willamette Meteorite, listed as Meteorite Shale.
What exactly is Meteorite Shale?
It is a term used for a highly weathered (terrestrialized) meteorite.
The use of “shale”, I suspect, came from the tendency of some
highly weathered meteorites, specifically highly oxidized iron
meteorites to develope a layered structure as they weather and
break into subparallel / parallel layers like shale when broken.
The terms “shale balls” and “iron shale” is also used for
some highly weathered meteorites.
When Meteorites Get Old
http://www.meteorite-times.com/Back_Links/2005/January/Meteorite_of_Month.htm
Yours,
Paul H.
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