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Sierra Gorda 010   contributed by Timur Kryachko   MetBul Link


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View all entries for   Meteorite (4)   Timur Kryachko (59)


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  R4-an

TKW 280 grams. Fall not observed. Found 20 October 2017, Antofagasta, Chile, by the contributor.

As of today, the only meteorite in the MetBul with this classification.


 


Timur writes:
The world's first anomalous rumurutite! Before this meteorite, in Latin America they did not find a single R-chondrite.

Before obtaining data on oxygen isotopy, the researchers believed that it was an anomalous CK carbonaceous chondrite. Meteorite is magnetic. The whole ore phase is not typical for rumuruti. Perhaps this meteorite will eventually become the founder of a new chondrite subgroup. <>BR>
Slices of this meteorite are already available on Ebay.


Check out my listings on Ebay.
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#1

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#4

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

 


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Timur Kryachko
 4/26/2019 3:33:33 PM
I apologize for the translator! :) SC and UK - you need to read as CK! :)
Timur Kryachko
 4/26/2019 3:13:47 PM
Before obtaining results on oxygen isotopy, this meteorite, which has 4% chromium magnetite, pyrrhotite and pentlandite, a green matrix with olivine of intermediate composition (between SC and rumurut), was evaluated by Russian experts and scientists of the Smithsonian Institute - an anomalous UK carbonaceous. Only oxygen isotopy, made twice in London, indicated that it would rumutite. For many months, Marina Ivanova defended the classification of this meteorite, since the Committee on the Nomenclature of Meteorites wanted to simplify everything, as is often the case.
Ben Fisler
 4/26/2019 2:13:06 PM
I would like to hear more about this unusual classification.
Timur Kryachko
 4/26/2019 7:44:08 AM
The classification discussion lasted 6 months. This meteorite looks more like an anomalous CK in mineralogy, but in terms of isotopy it is a rumuruti ...
John Lutzon
 4/26/2019 7:16:50 AM
It would be nice to hear the discussions during classification --what the hell do we call this one! Great find!!
Timur Kryachko
 4/26/2019 3:42:22 AM
The first slice of Sierra Gorda 010 - sold on ebey in the store moonlight-77.
 

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