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NWA XXX   contributed by Steve Brittenham, IMCA 2184   MetBul Link


Roll Overs:       1   2   3   4   5   6   7   8   9    


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View all entries for   Meteorite (76)   Steve Brittenham (111)


Copyright (c) Steve Brittenham.
Oriented stone.   unclassified

Fall not observed.


Steve writes:
The unclassified NWA in Photo 1 is a nicely sized and shaped "hand stone" for letting people hold an actual rock from space (Photos 2 and 3 show alternate views). Although obviously weathered, the fusion crust still appears somewhat glossy (desert patina?), with duller protruding "warts" that are quite hard, as they stand up to wire brushing and other mechanical attempts to clean them up.

Contraction cracks are not particularly plentiful in the crust, but a few can be seen in Photos 4 and 5. Photo 6 also shows contraction cracks on the right side of the image, as well as the end of a curious small bulge on the left that spans about 4 cm across the opposite side in Photo 7, which was taken at three slightly different angles to better depict this bulge going down the approximate center of that edge and how it becomes more shallow in the middle.

The click rate with a spot metal detector suggests a definite bias on one side compared to the other. Part of me is tempted to cut this meteorite to see what’s inside, while another part appreciates the aesthetics of the complete stone and makes me reluctant to do so (I’ve debated this decision for over half a decade, and before that, it sat on Edwin Thompson’s desk for several years because he had the same dilemma!).

Finally, the broken window in Photo 8 exhibits a clear rollover lip, suggesting the break occurred mid-flight. And visually, there are a few obvious metal protrusions from the crust, with a particularly unique one shown in Photo 9 (it can also just barely be seen in Photo 3 on the edge at about the 10:30 position).
 


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NWA XXX
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This Month

2 pictures in the Queue
Twink Monrad
 5/9/2022 10:00:48 PM
Yes ET and his neat NWAs that he kept for special occasions. Some of you may remember that I furnished chocolate truffles to his room for a number of years, for that I have some wonderful NWAs similar to one in photo today. Mine are not yet cut either. Now I am getting curious...
Steve Brittenham (the Idiot Poster)
 5/9/2022 7:05:35 PM
John, Paul just emailed me and let me know he fixed the TKW and added the trademark symbol to my self-proclaimed (and now protected!) Idiot Poster title :)
Steve Brittenham
 5/9/2022 12:50:11 PM
 Well John, the Idiot Poster™ must bear some responsibility too. On Paul's preview copy, I didn't see anything related to 18 grams, but Paul did have a TKW of 10 kg that I missed (I see it's still there, but obviously as an unclassified NWA, the TKW is not known). To your question, I should have included it in the writeup - its weight is 357.8 grams, and it measures approximately 100 x 65 x 31 mm.
Idiot Programmer ™
 5/9/2022 9:20:00 AM
Steve did not specify a weight. I was going to ask but forgot. I also forgot to clean up the cut-and-paste.
John Divelbiss
 5/9/2022 5:57:35 AM
interesting stone...question Steve, is the weight really 18 grams. Pic #1 in hand looks more like 100 grams or more. Also...any idea what kind it might be?
 

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