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Northwest Africa 11424
Basic information Name: Northwest Africa 11424
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11424
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 298 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 545 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 13 Oct 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11424 (NWA 11424)

(Northwest Africa)

Purchased: 2017 Apr

Classification: HED achondrite (Diogenite)

History: Purchased by Fabien Kuntz in April 2017 from a dealer in Erfoud, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Metamorphic aggregate of interlocking orthopyroxene grains with accessory chromite, clinopyroxene, Ni-free metal and troilite.

Geochemistry: Orthopyroxene (Fs25.2-25.4Wo3.4-3.7, FeO/MnO = 27-28, N = 3), clinopyroxene (Fs8.7-8.9Wo45.5-45.1, FeO/MnO = 18-20, N = 2).

Classification: Diogenite.

Specimens: 20.18 g including one polished thin section at PSF; remainder with Kuntz.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2017 Apr
Mass (g):298.3
Pieces:1
Class:Diogenite
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):25.2-25.4; 8.7-8.9
Wollastonite (mol%):3.4-3.7; 45.5-45.1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.18
Type spec location:PSF
Main mass:F. Kuntz
Comments:Work name K322; submitted by A. Irving
Institutions
   and collections		 PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Filip Stalmach   
Mike Markowitz   
Ryan Upchurch   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9914 approved meteorites from (Northwest Africa) (plus 1841 unapproved names)

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