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Northwest Africa 10687
Basic information Name: Northwest Africa 10687
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10687
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 2.58 kg
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 623 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 2 Jul 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10687 (NWA 10687)

(Northwest Africa)

Purchased: 2016 Apr

Classification: Ureilite

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

Petrography: (A. Irving, UWS) Composed of olivine and low-Ca pyroxene with grain boundary zones of blebby Fe metal and microdiamond. Both olivine and pyroxene have been completely recrystallized to very fine grained, polygranular aggregates.

Geochemistry: (P. Carpenter, WUSL) Olivine (Fa13.0-15.0, N = 3), orthopyroxene (Fs5.3Wo4.4), pigeonite (Fs2.0Wo8.9).

Classification: Ureilite (recrystallized).

Specimens: 20.3 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):2582
Pieces:1
Class:Ureilite
Shock stage:high
Weathering grade:low
Fayalite (mol%):13.0-15.0
Ferrosilite (mol%):5.3; 2.0
Wollastonite (mol%):4.4; 8.9
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.3
Type spec location:UWB
Main mass:A. Aaronson
Comments:M1917; 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)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
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 9013 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)

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