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Re: "new" DAG489 Mars rock.


>  The meteor naming organization feels that it is different enough to 
>  segregate it with a different name.

< If a person went back to the original place that Zagami fell, found a 
fragment of
< zagami there, would that make it a new 15th Mars meteorite?

< Really, what the Meteoritical Committee says, is what goes.

And the Meteoritical Society's DaG 489 entry in Bulletin 83 says 
"The petrography, mineralogy, and noble gas chemistry of DaG 476
and DaG 489 are very similar, and the two are likely paired."

All of which begs the question, does the Meteoritical Society have the 
option to "rescind" a separate name, if further scientific evidence for 
"pairing" becomes indisputable?  And, in the above-quoted Zagami
scenario, how exactly WOULD the line be drawn between "new SNC"
and "just more Zagami"?  (Apologies, Jeff G., if this is a dumb question....)

Gregory

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