jeff
At 02:29 PM 11/25/2004, Michel Franco wrote:
Stan, List,
I have not really all the details about that present case, ( who really kowns ?).
So many NWA are thought to be paired. CV 3 series, CR series, IMB series, Howardite/eurcite, etc...,
You know that a lot of collectors think now any new CK chondrite from the Sahara is now said to be possibly paired with the CK recent series, same with R series.
What I personnaly think is that pairing is obvious for not brecciated meteorites, much more difficult for brecciated, xenolitic, etc... Look the majority of scinetific problems in NWA pairing come from brecciated ones.
I had that case of addionnal mass and it worked for, Djermaia, fall chad 1961, published this year. I have running a case with an important meteorite that might be paired with an existing NWA. It is analysed thses days. I'll will ask for an additonnal mass publication, if the lab says it is paired, not for an extra number or another name. I do not care about having the first declared mass. But some dealer care, as a new number make a new meteorite and a new openning on the market. This is a major problem, not the scientific pairing. Everybody knows that a new meteorite name ( even a new NWA !) make more money that an addionnal mass of an already marketed meteorite. The smaller the TKW, the higher the $/g, that' the rule.
I guess that if your lab say that NWA XXX is paired with your meteorite then there is no objection to declare an additonnal mass. It is not that much work for the Nom Com. Same as declaring a new number. The Nom Com has just to publish: Additionnal mass to NWA XXX, 2.543 kg and add the name of the main mass owner plus his location.
In fact the repsonsabilitry of the pairing is given by the lab. The Nom Com only act here as a registration chamber, which is not at all prejorative in my words.
I think that the problem comes with provisionnal number sgiven to NWA meteorites. I never asked for a provisionnal number for any of my finds. I send them to the lab with my proprietay hunter numbers. Then the Nom Com decides what name they have. But as, I said it take a year to have it published.
Best regards
Michel FRANCO Caillou Noir www.caillou-noir.com BP 16, 100 Chemin des Camp�nes 74400 Les Praz de Chamonix FRANCE
----- Original Message ----- From: "stan ." <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, November 25, 2004 7:13 PM Subject: Re: [meteorite-list] Re: NWA's, 'Dealers', Science, & NomCom
You may go to the Met Soc web site and fill the form for declaration of a new meteorite.
If the report of the lab says it is paired, the Nom Com will probably declare an additionnal mass to the already known NWA. And you will not steal a number to anyone. But you will wait for next July.
It works for non NWA meteorites, I do not see why it could not work for a NWA meteorite. Are they so different ?
I thought the NomCom already adressed this issue when they said that all new masses from nwa need to have a new number. If you could just 'add on' weight as you propose above half of the discussion on the list that has occured recently would be moot
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Dr. Jeffrey N. Grossman Chair, Meteorite Nomenclature Committee (Meteoritical Society) US Geological Survey 954 National Center Reston, VA 20192, USA Phone: (703) 648-6184 fax: (703) 648-6383
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