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MISSING: 9.04 kilogram Sikhote-Alin shrapnel individual   More Info


 
Sikhote Alin   contributed by John Mixter, IMCA 5107   MetBul Link


Roll Overs:     #1   #2   #3    


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View all entries for   Meteorite (138)   Contributor (8)


411.24 grams.   Iron, IIAB

TKW 23 MT. Observed fall 12 February 1947, Primorskiy kray, Russia

       


John writes:
A sizeable piece of "shrapnel" showing evidence of a violent explosion at precisely the right time to create a large near perfect circular pit with ragged sharp edges and a rather deep center section. This shape likely occurred when the largest mass of the Sikhote Alin exploded with a huge blast at lower altitudes. This piece is a testament to the monumental forces involved in this explosion.
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Photo 1

Photo 2

Photo 3

Found at the arrow (green or red) on the map below

 


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John Mixter
 5/28/2020 4:15:02 PM
Thank you all. I appreciate your input!
John Divelbiss
 5/28/2020 8:25:57 AM
superb SA John...the crust in the flared "crater" does confirm an earlier melting before this individual's ripping apart finished. WOW!
Graham Ensor
 5/28/2020 4:22:20 AM
That definitely took a big hit. As you say a great example of the forces involved. Love that there are so many types of SA specimens that tell the whole story of it's fall to Earth.
Juergen / jnmczurich
 5/28/2020 4:14:59 AM
I agree with Andi's comment. For me the piece mainly looks like a torn fragment, but a part looks like a an individual piece with some fusion crust in the large "circular pit". In my opinion these pieces "half explosion fragment, half individual piece" are very rare and very exciting, and it would appeal to me to make a metallographic preparation (cut in half and do a macroscopic etch to see undeformed and deformed pattern) on such a rare piece. John, I congratulate you on such a wonderful S-A collection sample. I recomment you, don't cut it in two halves... :-)
Andi Koppelt
 5/28/2020 12:58:51 AM
I guess the "circular pit" is more likely a big regmaglypt from an early fragmentation. So ablation created this pit not an explosion. It*s from the rim of a bigger individual.
 

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