[meteorite-list] Zag classification, / - differences, pop quiz

[Mikestockj at aol.com]

In a message dated 11/12/2004 3:54:53 PM Mountain Standard Time, 
jgrossman at usgs.gov writes:
The slash means the person could not tell, or, sometimes, that the meteorite 
is 
transitional.  

Hi Jeff
Thanks for clearing that up. Obviously shows I have never classified a 
meteorite.

I was getting my definition from the Introduction to each Meteoritical 
Bulletin. It says "For chondritic groups, petrologic types, shock stages and 
weathering grades, slashes (e.g. H5/6) indicate transitional assignments." Maybe the 
official definition could be slightly changed to reflect the fudge factor. :)

You mentioned that some times a person cannot tell if it is one 
classification or another so end up using the slash. I can understand how this is possible 
over a range of two grades. But do you believe that this is 
possible/acceptable over 3 or more grades such as H4/6?


Mike


Mike Jensen IMCA 4264
Bill Jensen IMCA 2359
Jensen Meteorites
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