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Northwest Africa 10065
Basic information Name: Northwest Africa 10065
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10065
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 283 g
Meteoritical Bulletin:  MB 104  (2015)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 288 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 1 May 2015
Writeup from MB 104:

Northwest Africa 10065 (NWA 10065)

(Northwest Africa)

Purchased: 2014 Jun

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Darryl Pitt in June 2014 from a dealer in Mauritania.

Physical characteristics: Single stone (282.8 g) coated by orange-brown weathering products. The fresh interior is dark gray with white clasts and visible fresh metal grains.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of mineral clasts of anorthite, pigeonite (some exsolved), olivine, orthopyroxene, subcalcic augite, augite, ferropigeonite, Ti-Cr-bearing spinel, kamacite, troilite and rare silica polymorph, together with rare devitrified glass spheres (of anorthite+pyroxene bulk composition), in a finer grained matrix containing sparse vesicles.

Geochemistry: Olivine (Fa26.4-58.6, FeO/MnO = 94-100, N = 3), orthopyroxene (Fs11.4-19.2Wo3.7-3.5, FeO/MnO = 87-68, N = 2), pigeonite (Fs32.6Wo8.2, FeO/MnO = 65), ferropigeonite (Fs45.5-64.8Wo20.4-22.6, FeO/MnO = 65-73, N = 2), subcalcic augite (Fs22.1Wo35.8, FeO/MnO = 58), augite (Fs13.0-13.9Wo38.5-41.9, FeO/MnO = 51-56, N = 2), plagioclase (An95.4-96.3Or0.2, N = 2). Bulk composition (R. Korotev, WUSL) INAA of subsamples gave the following mean abundances (in wt.%) FeO 7.9, Na2O 0.32; (in ppm) Sc 17.4, Ni 490, La 5.1, Sm 2.29, Eu 0.73, Yb 2.0, Lu 0.28, Hf 1.7, Th 1.1.

Classification: Lunar (feldspathic regolithic breccia). Bulk abundances for many elements overlap with those for NWA 8746, suggesting pairing of these two stones.

Specimens: 21.4 g including one polished endcut at UWB. The remainder is held by DPitt.

Data from:
  Table 0
  Line 0:
Place of purchase:Mauritania
Date:P 2014 Jun
Mass (g):282.8
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):26.4-58.6
Ferrosilite (mol%):11.4-19.2; 13.0-13.9
Wollastonite (mol%):3.7-3.5; 38.5-41.9
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.4
Type spec location:UWB
Main mass:D. Pitt
Comments:MAC 79; 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)
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)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
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 8777 approved meteorites from (Northwest Africa) (plus 1879 unapproved names)

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