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Northwest Africa 7950
Basic information Name: Northwest Africa 7950
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7950
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 590 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 465 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 14 Nov 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7950 (NWA 7950)

(Northwest Africa)

Purchased: 2013 May

Classification: HED achondrite (Diogenite)

History: Purchased in Temara, Morocco by Adam Aaronson in December 2012.

Petrography: (A. Irving and S. Kuehner, UWS) Fresh clast-rich breccia dominated by angular grains of orthopyroxene (of several different compositions) with accessory olivine, chromite and minor troilite.

Geochemistry: Orthopyroxene (Fs24.5Wo1.5; Fs25.9Wo1.5; FeO/MnO = 24-26), olivine (Fa29.8-30.3; FeO/MnO = 43-47).

Classification: Diogenite (polymict breccia). Composed of clasts and mineral debris from several different diogenite lithologies.

Specimens: 23 g of material and one polished thin section are at UWB. The remaining material is held by Aaronson.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Temara
Date:P 2013 May
Mass (g):590
Pieces:1
Class:Diogenite
Shock stage:low
Weathering grade:low
Fayalite (mol%):29.8-30.3
Ferrosilite (mol%):24.5; 25.9
Wollastonite (mol%):1.5; 1.5
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):23
Type spec location:UWB
Main mass:A. Aaronson
Comments:M1565; 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)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
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)
John A. Shea   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7937 approved meteorites from (Northwest Africa) (plus 1960 unapproved names)

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