[meteorite-list] Metal Distribution

[Adam Hupe]

I don't know any more about metal distribution.

Check out the recommended classification below for NWA
960, the world's first H/L/LL3 Chondrite and to think
I have been calling the "Tooth Stone":

http://tin.er.usgs.gov/meteor/metbull.php?code=31971


Best Regards,

Adam



> Hi List:
>    
>   I have a question regarding the metal distribution
> in ordinary chondrites.  I remember hearing
> ‘somewhere’ that in H-chondrites the free-metal is
> generally evenly distributed in medium sized blobs
> throughout the meteorite, and in L-chondrites the
> metal is more uneven, sometimes there will be large
> metal blobs in one area within the meteorite and
> elsewhere there is much less or no metal.  For
> LL-chondrites, I’m not sure; perhaps just less
> free-metal and total iron throughout the meteorite.
>    
>   The reason I’m asking is that I cut a small (~50
> gram) chondrite I got in Tucson and the metal is
> very fined grained and distributed very evenly
> throughout the meteorite, and there is a lot; it
> looks different then all the others I have cut.  In
> fact, this particular piece has more magnetic pull
> than any other meteorite (chondrite) I have.  I’m
> wondering if it could be an E-chondrite, because it
> has so much free-iron and the metal flakes get very
> small and vary in size.  But this made me wonder:
>    
>   Is there a way to somewhat estimate whether a
> meteorite is an H, L, or LL chondrite by observing
> the metal distribution inside?  Or are there
> patterns that fit each class in terms of metal
> distribution?
>    
>   Much Thanks,
>    
>   Greg S 
> 
> 
> 
>        
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