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Northwest Africa 7665
Basic information Name: Northwest Africa 7665
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7665
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 28 g
Meteoritical Bulletin:  MB 103  (2014)  Diogenite-pm
Recommended:  Diogenite-pm    [explanation]

This is 1 of 49 approved meteorites classified as Diogenite-pm.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 8 Nov 2014
Writeup from MB 103:

Northwest Africa 7665 (NWA 7665)

(Northwest Africa)

Purchased: 2012 Dec

Classification: HED achondrite (Diogenite, polymict)

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

Petrography: (A. Irving and S. Kuehner, UWS) Complex breccia composed mostly of debris from several different olivine-bearing diogenite lithologies plus eucrite debris. There are several compositions of orthopyroxene and olivine present, along with exsolved pigeonite, anorthite, silica polymorph, chromite, troilite (some in symplectitic intergrowths with orthopyroxene) and stained kamacite (in composite grains up to 0.6 mm across with troilite).

Geochemistry: Orthopyroxene (Fs24.6Wo2.6; Fs35.3Wo3.6; FeO/MnO = 27), olivine (Fa10.2; Fa24.9; Fa37.5; FeO/MnO = 47).

Classification: Diogenite (polymict breccia).

Specimens: 5.6 g of material and one polished thin section are on deposit at UWB. Aaronson holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Temara
Date:P 2012 Dec
Mass (g):28
Shock stage:low
Weathering grade:low
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):5.6
Type spec location:UWB
Main mass:Aaronson
Comments:M1453; submitted by A. Irving
   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)
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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     This is 1 of 7912 approved meteorites from (Northwest Africa) (plus 1974 unapproved names)

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