Dear Listees I hang my head in shame for not reading all of the postings before spamming Dave
David Freeman wrote: > Dear Mark, > Only the gem variety is called peridot. > Dave F. > > Mark Miconi wrote: > > >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 > > > > ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
