Best,
JKG
At 11:01 AM 9/9/2004, Adam Hupe wrote:
Dear List,
Jeff Grossman has been having a hard time posting to the list so I will forward his notes:
Adam,
My posts seem to be blocked from the meteorite-list, or at least they are disappearing into a black hole. This is what I tried to post twice today.
Jeff
The official policy of the Meteoritical Society, as determined by its Nomenclature Committee, is that the name NWA 1110 only refers to the material described under that name in Meteoritical Bulletin no. 86, which has a total weight of 118 g. No other material should be called by that name. It is acceptable and routine, however, for people to make statements indicating that various numbered stones may be paired (although I would be cautious about believing such statements unless they appear in the Bulletin or other scientific publications).
All new NWA stones, even if apparently paired with something else, must get their own numbers. This is the rule that applies to meteorites collected in areas of dense meteorite concentration, including all of those known as NWA. Note that this is NOT the same rule that applies if you find another piece of Holbrook or Allende... those would inherit the same name unless they could be proven to be separate meteorites.
The Committee is considering a new rule that would allow a new NWA stone to be paired with NWA 1110. Under this rule, the new stone would have to be given a provisional NWA number of its own, NWA xxxx. It would have to be characterized by an expert, who would have to submit the evidence for pairing to the NomCom. If accepted, and if the type specimen requirement based on the aggregate mass has been satisfied, we would announce that NWA xxxx was paired with NWA 1110, thereby increasing the TKW by a certain amount. NWA xxxx would become an official synonym for NWA 1110. This rule has not yet been adopted (it was open for public comment in the early summer).
jeff
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