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| Northwest Africa 5744 | |||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 5744 This is an OFFICIAL meteorite name. Abbreviation: NWA 5744 Observed fall: No Year found: 2009 Country: (Northwest Africa) Mass:  170 g | ||||||||||||||||||||||||||
| Classification history: |
This is 1 of 102 approved meteorites classified as Lunar. [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||
| Comments: | Approved 16 Apr 2009 | ||||||||||||||||||||||||||
| Writeup |
Writeup from MB 96:
Northwest Africa 5744 Mali Find: February 2009 Achondrite (lunar, granulitic troctolitic breccia) History: Found near Gawa, Mali, in February 2009 and purchased from a dealer by Adam Aaronson. Physical characteristics: A single, buff-colored, rounded stone (170 g) lacking fusion crust (Fig. 2). Small white clasts are visible in a pale, finer grained matrix. Petrography (A. Irving and S. Kuehner, UWS; T. Bunch, NAU): Recrystallized breccia composed mainly of plagioclase (up to 100 μm) with fine-grained (<50 μm) olivine, pigeonite, orthopyroxene, and accessory Ti-chromite and Ni-bearing troilite. Geochemistry: Plagioclase (An97.9Or0.1), olivine (Fa20.7, FeO/MnO = 76.9–94.5), pigeonite (Fs16.6Wo9.7, FeO/MnO = 50). Bulk composition (R. Korotev, WUSL): INAA on a 185 mg fragment gave FeO 5.7 wt%, Na2O 0.25 wt%; Sc 8.3, Cr 1050, La 1.1, Sm 0.47, Eu 0.58, Yb 0.42, Th 0.15, all in ppm. Classification: Achondrite (lunar, granulitic troctolitic breccia). Specimens: A total of 13.1 g and two polished thin sections are on deposit at UWS; a 7.1 g of sample is at NAU. The main mass is held by an anonymous collector. | ||||||||||||||||||||||||||
| Data from: MB96 Table 2 Line 73: |
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| Institutions and collections |
NAU: Geology, Bldg 12
Knoles Dr
Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012) 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) Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 96, MAPS 44, 1355-1397 (2009)
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| Photos: |
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| Geography: |
Statistics: This is 1 of 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names) | ||||||||||||||||||||||||||