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NWA 13987   contributed by Scott McGregor, IMCA 8154   MetBul Link


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View all entries for   Meteorite (1)   Scott McGregor (45)


Copyright (c) See Contributor's comments.
18.2 gram full slice. 85 x 45 x 2 mm.   CK4

TKW 1570 grams. Fall not observed. Purchased 2020 from an Algerian meteorite dealer.


 


Scott writes:
Not only chondrules in this CK4, but a great CAEye!
 


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Twink Monrad
 9/9/2024 7:21:55 PM
I did not mean it is manufactured!! Just so strange looking,I love it.
Twink Monrad
 9/9/2024 7:20:44 PM
Wow it does not even look real, like a manufactured piece. How interesting!!!
John Divelbiss
 9/9/2024 11:48:13 AM
Scott, my understanding CAN be wrong :/...and you may be correct. The images and my first thought/words to go with them just came out in my post. I'd take a correction too, so I remember once and for all. I was once told by my supervisor as a young cocky mechanical engineer that I might be wrong sometimes. Good lesson.
Scott McGregor
 9/9/2024 10:13:11 AM
John, I was assuming this was a type B or perhaps even type C CAI due to the coarse grains, but you could be right. The extra heating in a CK4 probably had some impact on the structure, including the outside light ring. Would love some CAI experts to weigh in on the type and what caused the multiple rings!
Steve Brittenham
 9/9/2024 8:59:54 AM
What a fun - and amazingly cool - slice! So many wonderful features.
John Divelbiss
 9/9/2024 8:46:00 AM
My understanding is that the featured large white CAI in the middle is a Type A melilite-rich (CAI) inclusion with a layered rim.
Bernd Pauli
 9/9/2024 6:26:17 AM
I should have written three interesting chondrules (at center) one above the other like a tower.
Bernd Pauli
 9/9/2024 6:04:33 AM
Another NWA beauty featuring an extremely interesting chondrule!
 

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