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Northwest Africa 5363
Basic information Name: Northwest Africa 5363
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 5363
Observed fall: No
Year found: 2008
Country: (Northwest Africa)
Mass:help 2.46 kg
Meteoritical Bulletin:  MB 99  (2011)  Achondrite-ung
Recommended:  Achondrite-ung    [explanation]

This is 1 of 119 approved meteorites classified as Achondrite-ung.   [show all]
Search for other: Achondrites, Ungrouped achondrites
Comments: Approved 26 Oct 2010
Writeup from MB 99:

Northwest Africa 5363 (NWA 5363)

(Northwest Africa)

Found: unknown

Classification: Ungrouped achondrite

History: Many pieces bought from nomads in February 2008 (Morocco) totaling 2455 g.

Physical characteristics: Many stones partly covered with a slightly weathered dark brown fusion crust. All the pieces were purchased together at one time and collected by the same nomad.

Petrography (A. Jambon, O. Boudouma and D. Badia, UPVI):  Olivine is dominant, with augite, chromite and accessory chlorapatite and iron phosphate. Contains troilite and weathered kamacite. Polygonal granular texture.

Geochemistry: Olivine Fa29 FeO/MnO=65, orthopyroxene En73Fs25Wo2, FeO/MnO = 41, augite En44Fs10Wo45, FeO/MnO = 37, chromite Cr/(Cr+Al =0.81. Oxygen isotopes (J. Gattacceca, C. Suavet, C. Sonzogni, CEREGE): δ17O =2.152‰; δ18O = 4.183‰; Δ17O = -0.023‰.

Classification: Achondrite (ungrouped), appears to be the same type as NWA 5400. Significantly weathered (W2/3).

Specimens: 32 g of sample and one polished section is on deposit at UPVI. Mbark Ait El Caid, Rissani (Morocco) holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Rissani
Mass (g):2455
Fayalite (mol%):29
Ferrosilite (mol%):25
Wollastonite (mol%):2
Classifier:A. Jambon
Type spec mass (g):32
Type spec location:UPVI
Main mass:Mbark Ait El Caid, Rissani (Morocco)
Comments:Submitted by A. Jambon
Plots: O isotopes:  
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 29 Oct 2018)
UPVI: Université Pierre et Marie Curie (Paris VI),Case 110, 4 Place Jussieu, 75005 Paris, France (institutional address; updated 5 Oct 2014)
References: Published in Meteoritical Bulletin, No. 99, April 2012, MAPS 47, E1-E52 (2012) [published online only]
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     This is 1 of 8674 approved meteorites from (Northwest Africa) (plus 1882 unapproved names)

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