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MISSING: 9.04 kilogram Sikhote-Alin shrapnel individual   More Info


 
Chihuahua City   contributed by jnmczurich, IMCA 2391   MetBul Link


Roll Overs:     #1   #2   #3   #4   #5    


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226.3 grams. 95 x 75 x 5-6 mm.   Iron, IC

TKW 54 kg. Fall not observed. Found 1925, Chihuahua, Mexico.



   


Jürgen / jnmczurich writes:
Chihuahua City is a chemically and structurally anomalous and recrystallized iron. It is a polycrystalline aggregate of centimeter-sized precursor taenite grains, each about 2.5-3 cm2 in size (to see in pictures 1 and 2). The iron contains small, but long schreibersite ((Fe, Ni)3P)) and a lot of small rounded cohenite ((Fe, Ni, Co)3C) inclusions. Some trolite inclusions up to 5mm in diameter are visible too. Chihuahua City is one of my favorite irons in my collection.

The close-up views are about 8x6 mm.

Dealer trade: 1991
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Photo 1

Photo 2

Photo 3

Photo 4

Photo 5

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

 


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Mendy Ouzillou
 5/14/2018 5:36:22 AM
This partial slice has really great character!
Graham
 5/14/2018 1:42:12 AM
Nice example and doubles up as an excellent bottle opener? ;-)
Peter Marmet
 5/14/2018 1:21:49 AM
Amazing! Thanks for sharing the great photos, Jurgen!
 

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