Hello Jeff,
First off, I would like to thank you for all your time and effort you place into this list.
I'm sure I'm not alone when I say that your name is one of several that prompt one to pause and fully read your posts.
I wonder if you might clarify for me your example (copied below) of NWA numbering, as this is a very exciting topic. Could one assume a stone with an NWA number that has no "extension", might be an example of a dealer's "best guess", as it would not reflect a "certified" number?
Although I don't condone this practice, yes. If a stone has been subject since day 1 to the application of subsample numbers then you would have to be suspicious that anybody selling pieces without them is just guessing. The problem is that there are going to be 1000's of grandfathered NWA's already out there with no subsample numbers, so how do you tell them apart?.
When a new find is made, would each stone be tested and given a "certified" incremental "extension" number?
Under my suggested system, the material that is known at the time of classification would get the subsample numbers. Since the NomCom does not allow new material found in dense collection areas to be added to existing numbers, there is not an issue concerning later-found material.
Best wishes, Mike
>Note, that when one is selling a meteorite, one should be careful how the >specimen numbers are used. You are selling NWA 5434. However, this 15 g >piece I have up for auction is a slice of NWA 5434,4. The name of the >meteorite has no comma. The name of a particular specimen does. >reactions? >Jeff
______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://six.pairlist.net/mailman/listinfo/meteorite-list
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
______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://six.pairlist.net/mailman/listinfo/meteorite-list
