Hello Mark, Matteo, John, Dean and List, John Divelbiss wrote:
> My comparison is that my two slices of 978 > looks a lot fresher than my two 753 slices First let me thank you for those great pictures but studying them, leaves me a little confused :-( Reason: Both Mark's and Matteo's NWA 753 specimens look like my NWA 978 from the Hupés (the one with the soft glow of the Milky Way in my description) whereas my NWA 753 from Jim Strope has conspicuous grayish-white slightly oval chondrules (definitely larger than the ones in my 978), is a much lighter gray color and looks fresher than my 978. "Fresher" would support the description you find in: BISCHOFF A. et al. (2001) Mineralogy, Chemistry, and noble gases of the unpaired Rumuruti chondrites NWA 753 and NWA 755 (MAPS 36-9, 2001, A021): "Mineralogy: Northwest Africa 753 is a quite fresh (W2) R3.9 chondrite, which is unbrecciated in thin section. The rock is probably one of the f r e s h e s t Rumuruti samples besides Rumuruti." Cheers, Bernd ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
