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  4 - August - 2020


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Canyon   contributed by Terry Hinson   MetBul Link
 


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43.8 grams.   H?

TKW 860 grams. Fall not observed. Found 1957, Randall County, Texas, USA.


 


Terry writes:
MetBul shows classification as an H? (that is H question mark) and defines this as "An ordinary chondrite that may be from the H group and for which petrologic type has not been determined." Canyon is one of only two of this classification (as listed in MetBul), the other being Hachi-oji from Japan.

Provenance on this goes back to the Institute of Meteoritics at the University of New Mexico. The inventory markings on this piece, I believe, are from Lincoln La Paz who founded the IOM where he was the director until approximately 1966.
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Found at the arrow (green or red) on the map below

 


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Anne Black
 8/4/2020 8:24:44 PM
From Albuquerque and Lincoln La Paz, certainly a precursor, and from what I have read, one who did not get along with H.H. Nininger. Certainly a rare one. Thanks Terry.
Don Cracraft
 8/4/2020 11:13:12 AM
Thanks for sharing. Lived in Japan as a young boy, and saw a minor 'meteor shower' and it really made a lasting impression on me. Don Cracraft 2650
Bernd Pauli
 8/4/2020 9:41:14 AM
Does anyone have background information on its TKW? The Catalogue of Meteorites says the TKW is 120.9 gr and so does the scanned text in the Met.Bull. writeup
 

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