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Northwest Africa 5419
Basic information Name: Northwest Africa 5419
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 5419
Observed fall: No
Year found: 2007
Country: Morocco
Mass:help 380 g
Meteoritical Bulletin:  MB 96  (2009)  Aubrite
Recommended:  Aubrite    [explanation]

This is 1 of 83 approved meteorites classified as Aubrite.   [show all]
Search for other: Achondrites, Aubrites, Enstatite achondrites, and Enstatite-rich meteorites
Comments: Approved 27 May 2009
Writeup from MB 96:

NWA 5419                                                                                        

Hammada du Draa, Morocco

Find: 2007

Achondrite (Aubrite)

History: The main mass of this meteorite (380 g) was bought by the main mass holder from a Moroccan dealer in Morocco in 2007. The find location is the Hammada du Draa, West-Morocco, the exact find position is not given.

Physical characteristics: The total known weight of this meteorite is about 1130 g. It consists of the main mass and many smaller and tiny pieces due to its brecciated and weathered nature.

Petrography Classification (J. Schlüter, Ham):. Monomict breccia dominated by large whitish enstatite grains. The sample provided for examination shows enstatite crystals up to 3 x 4 mm in a matrix of finer enstatite fragments. Further subordinate components are plagioclase, several clear grains of SiO2 (up to 300 μm) and relicts of FeNi metal. The SiO2 phase is anisotropic, a powder diffraction analysis indicates cristobalite (low). Grain boundaries of the whole meteorite are interlarded with limonite. All enstatite crystals show fine shock lamellae.

Geochemistry: Orthopyroxene (n = 10) En99.37Fs0,23Wo0,40. Plagioclase (n=4): An1.63- 2.55 and Or3.46-6.90.

Classification: Achondrite, brecciated (Aubrite). Shock and weathering of medium to high degree.

Type specimens: A total of 23.4 g of sample and one polished thin section is on deposit at the Mineralogical Museum, University of Hamburg, Germany.  Mr. H. Burkard, Bonn, Germany  holds the main mass.

Data from:
  Table 2
  Line 49:
Mass (g):380
Ferrosilite (mol%):0.23
Classifier:J. Schlueter, Hamb
Type spec mass (g):23.4
Type spec location:Hamb
Main mass:Horst
Comments:See separate entry
   and collections
Hamb: Museum der Natur Hamburg - Mineralogie, Grindelallee 48, D-20146 Hamburg, Germany; Website (institutional address; updated 18 Jan 2024)
Burkard: Horst Burkard, Bonn, Germany (private address)
Ham: Museum der Natur Hamburg - Mineralogie, Grindelallee 48, D-20146 Hamburg, Germany; Website (institutional address; updated 18 Jan 2024)
Horst: Burkard Horst, Germany (private address)
References: Published in Meteoritical Bulletin, no. 96, MAPS 44, 1355-1397 (2009)
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     This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

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