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Northwest Africa 8176
Basic information Name: Northwest Africa 8176
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8176
Observed fall: No
Year found: 2004
Country: (Northwest Africa)
Mass:help 380 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 344 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 18 May 2014
Writeuphelp
Writeup from MB 103:

Northwest Africa 8176 (NWA 8176)

(Northwest Africa)

Purchased: 2004 Dec

Classification: HED achondrite (Eucrite, polymict)

History: Purchased in Morocco by Adam Aaronson in December 2004.

Petrography: (A. Irving and S. Kuehner, UWS) Fragmental breccia composed of small, angular clasts and related debris. The predominant clast type is intersertal-textured basaltic eucrite; other clast types are variolitic-textured eucrite, microbreccia and rare diogenitic orthopyroxene grains.

Geochemistry: Orthopyroxene host (Fs57.5-58.8Wo4.8-5.2; FeO/MnO = 28-34), clinopyroxene exsolution lamellae (Fs27.3-27.6Wo42.3-41.6; FeO/MnO = 32-33).

Classification: Eucrite breccia (polymict).

Specimens: 22 g including a polished thin section at UWB. The remainder is held by Aaronson.

Data from:
  MB103
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2004 Dec
Mass (g):380
Pieces:1
Class:Eucrite-pmict
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):57.5-58.8; 27.3-27.6
Wollastonite (mol%):4.8-5.2; 42.3-41.6
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):22
Type spec location:UWB
Main mass:A. Aaronson
Comments:M408; 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. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7101 approved meteorites from (Northwest Africa) (plus 2004 unapproved names)

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