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Northwest Africa 7399
Basic information Name: Northwest Africa 7399
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7399
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 258 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 510 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 3 Jun 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7399 (NWA 7399)

(Northwest Africa)

Purchased: 2012 Apr

Classification: Ureilite

History: Purchased by Beat Booz in April 2012 from a dealer in Marrakech, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Protogranular assemblage of olivine and grayish pigeonite, both of which have been recrystallized into myriad, very fine grained, polycrystalline aggregates. Grains of both olivine and pyroxene exhibit dark, more magnesian rims containing abundant blebs of iron metal.

Geochemistry: Olivine (cores Fa24.8-24.9; rim Fa12.0), pigeonite (core Fs15.7Wo8.7, rim Fs10.2Wo7.7).

Classification: Ureilite

Specimens: A total of 21.8 g of sample and one polished thin section are on deposit at UWB. Mr. B. Booz holds the main mass.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Marrakech
Date:P 2012 Apr
Mass (g):257.8
Pieces:1
Class:Ureilite
Shock stage:high
Weathering grade:low
Fayalite (mol%):24.8-24.9
Ferrosilite (mol%):15.7
Wollastonite (mol%):8.7
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.8
Type spec location:UWB
Main mass:B. Booz
Comments:BB-40; submitted by A. Irving
Institutions
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Beat Booz         
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6877 approved meteorites from (Northwest Africa) (plus 2037 unapproved names)

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