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NWA 5131

 

NWA 5131

Found Sahara, 2008

Primitive Achondrite

Metamorphosed Carbonaceous

CR7 / Pac 

(missreferenced as LL7 on MetSoc database)

Specimen is a 2.15g slice

 

 

 

First believed, with a totaly recristalised petrology and affinities in chemistry with type L chondrite, to be the third L7 (with Dho 1275 and Forrest 028), the oxygene isotopes data shows today that official NWA 5131 is a matamorphosed CR carbonaceous chondrite, and so reclassified as a CR7!!!

Origin or pseudonym: Morocco
Date: 2007
Mass (g): 533
Pieces: 1
Class: LL7
Fayalite (mol%): 29.3
Ferrosilite (mol%): 24.7
Wollastonite (mol%): 2
Classifier: Bunch, NAU
Type spec mass (g): 21
Type spec location: PSF
Main mass: PSF
Comments: No chondrules

8460元台幣

NWA5131 matamorphosed CR碳质球粒陨石 Specimen is a 0.56g slice

3250元台幣



 
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