New groups names are not a NomCom issue, although there are people who think it should be. Group names come into being through consensus. Many group names have died at birth, never being adopted by anybody other that the person who wrote the initial publication (e.g., F chondrites, CA chondrites). Others have caught on and become widely accepted (recently, R, CH, CK, CR chondrites). Still others remain on the fence (e.g., CB chondrites versus bencubbinites or just bencubbin-like meteorites). It takes time.

My personal opinion is that "olivine diogenite" is a perfectly fine term. Although it preserves the antiquated, nondescriptive, trivial term "diogenite," everybody in meteoritics now knows what a diogenite is, and that it comes from the HED parent body, most likely Vesta. What we don't need now, in this age where we actually know where meteorites come from, is more trivial terms. I strongly doubt that any publication that proposes calling them something else would ever catch on.

jeff


At 10:55 PM 6/17/2003, Adam Hupe wrote:
Dear List Members,

It is our pleasure to announce NWA 1877, (provisional) the second so-called
"Olivine Diogenite" in private hands.  This makes number five including the
three Antarctic finds.  The significance of it being number five is that it
now qualifies to be promoted to main group status if approved by the
Nomenclature Committee.  Scientists who are working on it agree that this
ultra-rare class is suited in every way for a new full-blown group and are
willing to propose this new group.  Since O-Isotopes place this from the
same parent body as the HED group, naming this new group would be a
history-making event.  A main group has never been added to the HED
assemblage, only subgroups.

This is not paired with NWA 1459, which was found in Iriqui and only weighed
49 grams.  Weighing in at 312 grams, NWA 1877, (provisional) is the most
olivine-rich yet found with ~50% of this mineral.  The scientists who are
working on it suggested coming up with a new name for this group since
Diogenite, by definition, does not accurately describe this type of
meteorite.  The name "Olivine Diogenite" was coined by scientists working on
the Antarctic finds for lack of a better term at the time.   If these five
were from Earth they would be called "Harzburgitic Peridotites" but you
cannot use terrestrial terms to name meteorite types.  This is where the
List may be able to help.  Scientists suggested that the meteoritic
community, meaning the List, come up with a name for this group.

We do not know what to call this proposed new group since none of them are
from witnessed falls.   It was suggested that it be named in honor of some
famous pioneer in the field of meteoritics or some closely related
discipline.  We are open to suggestions and know that List members can be
very creative.  Who knows? you may be able to become a part of history by
coming up with a suitable name.

In case you have not guessed this will be the weekly rare material
announcement but with some added flare because it is something anyone could
get involved in if they wished.   If you come up with a suitable name we
will send you a 1-gram plus specimen free of charge.

Wishing everybody the very best,

Adam and Greg Hupe
The Hupe Collection
IMCA 2185




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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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