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Northwest Africa 7956
Basic information Name: Northwest Africa 7956
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7956
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 55.2 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  LL6
Recommended:  LL6    [explanation]

This is 1 of 2812 approved meteorites (plus 1 unapproved name) classified as LL6.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 14 Oct 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7956 (NWA 7956)

(Northwest Africa)

Purchased: 2013 Apr

Classification: Ordinary chondrite (LL6)

History: Puchased by Steve Witt in April 2013 from a Moroccan dealer.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of closely-packed, angular clasts which are highly recrystallized with poikiloblastic textures and only rare chondrule remnants. Olivine, orthopyroxene, clinopyroxene, sodic plagioclase, chromite, stained kamacite and troilite.

Geochemistry: Olivine (Fa32.3-33.3), orthopyroxene (Fs25.2-25.4Wo2.3-2.1), clinopyroxene (Fs10.9Wo42.1)

Classification: Ordinary chondrite (LL6).

Specimens: 12.2 g and one polished thin section are at UWB. The remainder is held by Mr. S. Witt.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2013 Apr
Mass (g):55.2
Pieces:1
Class:LL6
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):32.3-33.3
Ferrosilite (mol%):25.2-25.4
Wollastonite (mol%):2.3-2.1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):12.2
Type spec location:UWB
Main mass:S. Witt
Comments:SW13-3; 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)
Suzanne De Paula   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7859 approved meteorites from (Northwest Africa) (plus 1961 unapproved names)

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