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Northwest Africa 11448
Basic information Name: Northwest Africa 11448
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11448
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 62.7 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 514 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 30 Oct 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11448 (NWA 11448)

(Northwest Africa)

Purchased: 2017 Apr

Classification: Ureilite

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

Petrography: (A. Irving and S. Kuehner, UWS) Aggregate of elongate grains of olivine (~70 vol.%) and pigeonite (~30 vol.%) exhibiting some preferred shape orientation, plus interstitial finer grained, dark brown zones. Olivine has reduced magnesian rims associated with blebby Fe metal.

Geochemistry: Olivine (cores Fa22.4-22.6; rim Fa11.8; N = 3), pigeonite (Fs17.7-18.0Wo10.3-10.1, N = 2).

Classification: Ureilite.

Specimens: 12.86 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):62.7
Pieces:1
Class:Ureilite
Shock stage:moderate
Weathering grade:low
Fayalite (mol%):22.4-22.6; 11.8
Ferrosilite (mol%):17.7-18.0
Wollastonite (mol%):10.3-10.1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):12.86
Type spec location:PSF
Main mass:F. Kuntz
Comments:Work name K339; 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)
Mike Markowitz   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6968 approved meteorites from (Northwest Africa) (plus 2012 unapproved names)

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