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Northwest Africa 10228
Basic information Name: Northwest Africa 10228
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10228
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 19.4 g
Meteoritical Bulletin:  MB 104  (2015)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 321 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 4 Sep 2015
Writeup from MB 104:

Northwest Africa 10228 (NWA 10228)

(Northwest Africa)

Purchased: 2015 May

Classification: Lunar meteorite (feldspathic breccia)

History: Purportedly found near Laagad, east of Assa, Morocco and purchased by John Higgins from a dealer in Ouarzazate in May 2015.

Petrography: (A. Irving and S. Kuehner, UWS) Very fine-grained breccia consisting of small mineral clasts of anorthite, olivine, pigeonite, augite, ilmenite, kamacite, troilite, merrillite, plus rare grains of rutile and baddeleyite, within a melt-textured intersertal matrix.

Geochemistry: Olivine (Fa25.6-26.2, FeO/MnO = 91-103, N = 4), pigeonite (Fs 22.0-24.3Wo6.6-8.0, FeO/MnO = 50-60, N = 3), augite (Fs14Wo37.4, FeO/MnO = 44).

Classification: Lunar (feldspathic melt-matrix breccia)

Specimens: 4.15 g including one polished slice at UWB; main mass with Mr. J. Higgins.

Data from:
  Table 0
  Line 0:
Place of purchase:Ouarzazate
Date:P 2015 May
Mass (g):19.4
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):25.6-26.2
Ferrosilite (mol%):22.0-24.3; 14.0
Wollastonite (mol%):6.6-8.0; 37.4
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):4.15
Type spec location:UWB
Main mass:J. Higgins
Comments:JH15-4; 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. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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     This is 1 of 9305 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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