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Northwest Africa 10806
Basic information Name: Northwest Africa 10806
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10806
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 30 g
Meteoritical Bulletin:  MB 105  (2016)  Eucrite-br
Recommended:  Eucrite-br    [explanation]

This is 1 of 200 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 30 Sep 2016
Writeup from MB 105:

Northwest Africa 10806 (NWA 10806)

(Northwest Africa)

Purchased: 2016 May

Classification: HED achondrite (Eucrite, brecciated)

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

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of sparse lithic eucrite clasts (mostly with microgabbroic texture but also some with finer subophitic texture) plus related crystalline debris in a finer grained matrix. All pyroxene (finely exsolved pigeonite) is pale clove-brown in thin section. Other minerals are calcic plagioclase, silica polymorph, ilmenite, troilite and Ni-fee metal.

Geochemistry: Orthopyroxene host (Fs60.1-60.3Wo2.9-2.7, FeO/MnO = 31, N = 3), clinopyroxene exsolution lamellae (Fs29.7-32.2Wo38.0-40.2, FeO/MnO = 31-33, N = 2).

Classification: Eucrite (genomict breccia).

Specimens: 6.3 g including one polished thin section at UWB; remainder with Aaronson.

Data from:
  Table 0
  Line 0:
Place of purchase:Temara
Date:P 2016 May
Mass (g):30
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):60.3-60.5; 29.7-32.2
Wollastonite (mol%):2.9-3.1; 38.0-40.2
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):6.3
Type spec location:UWB
Main mass:A. Aaronson
Comments:M1923; 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. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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     This is 1 of 8138 approved meteorites from (Northwest Africa) (plus 1941 unapproved names)

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