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 <[EMAIL PROTECTED]> Organization: Desert Research Institute To: DiamondMeteor <[EMAIL PROTECTED]> Cc: meteorite-list <[EMAIL PROTECTED]> 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 ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
