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Northwest Africa 8362
Basic information Name: Northwest Africa 8362
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8362
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass:help 548 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 386 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 25 Nov 2014
Writeuphelp
Writeup from MB 103:

Northwest Africa 8362 (NWA 8362)

(Northwest Africa)

Purchased: 2013 Dec

Classification: HED achondrite (Howardite)

History: Purchased in December 2013 by John Higgins from a dealer in Tagounite, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Fragmental breccia composed of diogenitic orthopyroxene (~50 vol.%), calcic plagioclase, finely exsolved pigeonite, augite, olivine, Ti-bearing chromite, Cr-rich chromite, ilmenite, silica polymorph, troilite, stained Ni-free metal and some basaltic eucrite clasts.

Geochemistry: Diogenitic orthopyroxene (Fs19.7-19.9Wo0.9-1.0, FeO/MnO = 30-35, N = 3), host orthopyroxene (Fs58.2Wo2.4, FeO/MnO = 27), clinopyroxene exsolution lamella (Fs28.5Wo41.0, FeO/MnO = 28), ferroan low-Ca pyroxene (Fs51.7Wo2.0, FeO/MnO = 25), augite (Fs17.7Wo42.1, FeO/MnO = 23), olivine (Fa42.0-43.0, FeO/MnO = 46, N = 2).

Classification: Howardite.

Specimens: 25.2 g including one polished thin section at UWB. The remainder is held by J. Higgins.

Data from:
  MB103
  Table 0
  Line 0:
Place of purchase:Tagounite
Date:P 2013 Dec
Mass (g):548
Pieces:1
Class:Howardite
Shock stage:low
Weathering grade:low
Fayalite (mol%):42.0-43.0
Ferrosilite (mol%):19.7-19.9; 58.2; 28.5
Wollastonite (mol%):0.9-1.0; 2.4; 41.0
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):25.2
Type spec location:UWB
Main mass:J. Higgins
Comments:JH14-1; 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. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Mike Markowitz   
Russ Opdahl   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7483 approved meteorites from (Northwest Africa) (plus 1994 unapproved names)

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