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Northwest Africa 10802
Basic information Name: Northwest Africa 10802
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10802
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 320 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Eucrite-unbr
Recommended:  Eucrite-unbr    [explanation]

This is 1 of 89 approved meteorites classified as Eucrite-unbr.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 24 Sep 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10802 (NWA 10802)

(Northwest Africa)

Purchased: 2016 Apr

Classification: HED achondrite (Eucrite, unbrecciated)

History: Purchased in Temara, Morocco by Adam Aaronson in April 2016.

Petrography: (A. Irving and S. Kuehner, UWS) Fresh specimen with microgabbroic texture. Composed predominantly of exsolved pigeonite and calcic plagioclase with accessory silica polymorph, Ti-chromite and slightly stained Ni-free metal.

Geochemistry: Orthopyroxene host (Fs59.3-60.0Wo3.9-2.6, FeO/MnO = 27-28, N = 3), clinopyroxene exsolution lamellae (Fs27.6-27.8Wo42.0-41.4, FeO/MnO = 25-26, N = 2), plagioclase (An89.3-89.4Or0.4, N = 2).

Classification: Eucrite (unbrecciated, microgabbroic).

Specimens: 20.7 g including one polished thin section at UWB; remainder with Aaronson.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Temara
Date:P 2016 Apr
Mass (g):320
Pieces:1
Class:Eucrite-unbr
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):59.3-60.0; 27.6-27.8
Wollastonite (mol%):3.9-2.6; 42.0-41.4
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.7
Type spec location:UWB
Main mass:A. Aaronson
Comments:M1919; 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. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6759 approved meteorites from (Northwest Africa) (plus 2047 unapproved names)

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