[meteorite-list] Metal-sulfide question

[Jeff Pringle]

I ran across this paper - 
<http://www.lpi.usra.edu/meetings/lpsc2000/pdf/1420.pdf>
Which mentions dendritic metal-sulfide intergrowths in CR-clan meteorites,
and I was wondering if this is a common feature of impact melts/breccias, or
is it an unusual feature? 
Does anyone have a good photo of this effect, since the one in the paper is
kinda lo-res?
Thanks!