[meteorite-list] Is This All Olivine

From: Robert Verish <bolidechaser_at_meteoritecentral.com>
Date: Thu Apr 22 09:54:05 2004
Message-ID: <20020215214228.62783.qmail_at_web10406.mail.yahoo.com>

Hi Dave,

I liked your reply. It was very well-stated.
I have to admit that, at least, the replies to Mohamed
are very educational.
But I'm still disappointed that he misidentified an
obviously superb "pseudo-diogenite"! This specimen
would be a excellent addition to any meteor-wrong
collection.
:-)
Bob V.

---------------- Original Message ---------------
Date: Fri, 15 Feb 2002 09:42:57 -0800
From: Dave Mouat <dmouat_at_dri.edu>
Organization: Desert Research Institute
To: DiamondMeteor <DiamondMeteor_at_hotmail.com>
Cc: meteorite-list
<meteorite-list_at_meteoritecentral.com>
Subject: Re: [meteorite-list] Is This All Olivine

Mohamed
I'm not sure what you mean by the word "large" as in
"Olivine is rarely found in large sizes" but in
ultramafic rock exposures (some classic localities
in Oman, by the way) we can find pure unserpentinized
olivine in masses the size of the Hoba meteorite (60
tons) and larger. We find entire mountains of
serpentinized to somewhat serpentinized olivine. So,
the presence of olivine would not be diagnostic of a
meteoritic origin. Isotopic (and other chemical)
analyses would be diagnostic.
Dave




__________________________________________________
Do You Yahoo!?
Got something to say? Say it better with Yahoo! Video Mail
http://mail.yahoo.com
Received on Fri 15 Feb 2002 04:42:28 PM PST