Fresh H chondrites have 9-13 volume% metal plus sulfide, L chondrites have 6-7 vol% metal plus sulfide. But notice that a perfectly respectable H chondrite with 9% only has slightly more metal+sulfide than a perfectly respectable L with 7%. It's not always easy to distinguish on this basis. The quality of the surface can also affect what you see.

With that said, here is the reason I am writing: this meteorite has not been approved by the Nomenclature Committee, so it may not have been formally classified yet. A lot of provisional classifications get changed when somebody does an analysis.

jeff

At 05:14 PM 4/2/2004 -0700, you wrote:
Hello List, I am confused!  Please help me out on this!  An L is low and an
H is high, right?  If a meteorite is chocked full of visible metal can it be
a L, or is it an H??
  The reason I am asking, I recieved my NWA 869 and it has tons of metal and
I know NWA 869 is an L, now I am confused!!!! Does 869 have a ton of metal?
Or is this not 869? Please help me! : )
Thanks, Tom
peregrineflier <><
Proudest member of the YMCA # OU812


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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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