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 Hup�s (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
