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Northwest Africa 10562
Basic information Name: Northwest Africa 10562
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10562
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 1180 g
Meteoritical Bulletin:  MB 105  (2016)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 449 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 26 Mar 2016
Writeup from MB 105:

Northwest Africa 10562 (NWA 10562)

(Northwest Africa)

Purchased: 2015 Nov

Classification: HED achondrite (Howardite)

History: Purchased by Bob Falls in November 2015 from a dealer in Zagora, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Fragmental breccia consisting mainly of eucritic mineral debris plus some ophitic-textured eucrite clasts, plus some very fine grained granulitic clasts and ~15 vol.% of large grains (up to 3 mm across) of diogenitic orthopyroxene (with undulose extinction). Other minerals are exsolved pigeonite, calcic plagioclase, silica polymorph, olivine, ilmenite, Ti-free chromite, troilite and Ni-poor kamacite.

Geochemistry: Diogenitic orthopyroxene (Fs25.1-25.2Wo1.6-3.2, FeO/MnO = 26-31, N = 3), olivine (Fa37.8-55.2, FeO/MnO = 48-50, N = 2), orthopyroxene host (Fs57.9-59.9Wo4.3-3.8, FeO/MnO = 27-30, N = 3), clinopyroxene exsolution lamellae (Fs26.6-30.3Wo42.4-39.9, FeO/MnO = 31-33, N = 3).

Classification: Howardite.

Specimens: 29.1 g including one polished thin section at UWB; remainder with Mr. R. Falls.

Data from:
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2015 Nov
Mass (g):1180.2
Shock stage:low
Weathering grade:low
Fayalite (mol%):37.8-55.2
Ferrosilite (mol%):25.1-25.2; 57.9-59.9; 26.6-30.3
Wollastonite (mol%):1.6-3.2; 4.3-3.8; 42.4-39.9
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):29.1
Type spec location:UWB
Main mass:R. Falls
Comments:BF15-6; 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)
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 9368 approved meteorites from (Northwest Africa) (plus 1875 unapproved names)

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