[meteorite-list] Sikhote-Alin Shrapnel

[Pete Pete]

Apologies if this is a re-post. The first doesn't appear to have been sent...

 Greetings, all, 

While we're on Sikhote-Alin's; minus small impact craters and flow lines, is there an obvious indicator(s) separating entry shrapnel from impact shrapnel? 

Sharper edges?
Shinier surface? 

I'd settle for a link with the information, which has so far eluded me. 

Cheers,Pete 
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