Wouldn't/isn't terrestrial Olivine called Peridot anyway? Mark ----- Original Message ----- From: Dave Mouat <[EMAIL PROTECTED]> To: DiamondMeteor <[EMAIL PROTECTED]> Cc: meteorite-list <[EMAIL PROTECTED]> Sent: Friday, February 15, 2002 10:42 AM 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 > > DiamondMeteor wrote: > > > Dear List; > > I found few rocks that look all composed of Olivine,, and I have read before > > that Olivine is rarely found in large sizes. I have measured its specific > > gravity and found it to be around 3.3 (Olivine: 3.2), its hardness and also > > its color is close to Olivine. > > Some rocks have very thin fusion crust. > > Please have a look,, and I would be delighted to hear your openion. > > http://pages.britishlibrary.net/mhy10/meteor/olv.htm > > > > Best Regards > > Mohamed > > ---------------------------------------------------------------------- > > http://pages.britishlibrary.net/mhy10/meteor/index.html > > =============================================== > > "As vision grows expression becomes difficult.", AnNiffari > > > > ______________________________________________ > > Meteorite-list mailing list > > [EMAIL PROTECTED] > > http://www.pairlist.net/mailman/listinfo/meteorite-list > > > ______________________________________________ > Meteorite-list mailing list > [EMAIL PROTECTED] > http://www.pairlist.net/mailman/listinfo/meteorite-list ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
