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Northwest Africa 10415
Basic information Name: Northwest Africa 10415
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10415
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 164 g
Meteoritical Bulletin:  MB 104  (2015)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 312 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 24 Nov 2015
Writeup from MB 104:

Northwest Africa 10415 (NWA 10415)

(Northwest Africa)

Purchased: 2015

Classification: Lunar meteorite (feldspathic breccia)

History: Aras Jonikas purchased three stones from a Moroccan dealer in Guelmim, in August 2015.

Physical characteristics: Three identical appearing stones, 144, 15, and 5 g, with eathered exteriors. A saw cut reveals prominent light-colored feldspathic clasts, also numerous dark-gray clasts, and some shock melt veins and vesicles.

Petrography: (C. Agee, UNM) This is a fragmental, cataclastic, shock-melted lunar meteorite. Numerous feldspar grains and scattered olivines and pyroxenes are present throughout. There are shock melt domains present with vesicles. Accessory troilite, chromite, and Fe-oxides were observed.

Geochemistry: (C. Agee and N. Muttik, UNM) olivine Fa39.1±0.3, Fe/Mn=104±8, n=2; pigeonite Fs43.0±1.8Wo8.9±0.8, Fe/Mn=60±5, n=2; augite Fs33.3±12.7Wo35.0±6.5, Fe/Mn=64±5, n=2 plagioclase An96.8±0.3, n=2; Shock melt (20 μm defocused electron beam, proxy for bulk meteorite composition): SiO2=46.2±1.2, TiO2=0.17±0.13, Al2O3=31.6±4.4, Cr2O3=0.06±0.05, MgO=3.2±2.4, FeO=3.2±2.3, MnO=0.05±0.04, CaO=17.6±1.8, NiO=0.02±0.02, Na2O=0.34±0.03, K2O=0.10±0.04 (all wt%), MgO+FeO=6.5±4.7 (wt%), n=5.

Classification: Lunar (feldspathic breccia), high alumina.

Specimens: 20.2 g including a probe mount on deposit at UNM, Aras Jonikas holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2015
Mass (g):164
Class:Lunar (feldsp. breccia)
Shock stage:high
Weathering grade:moderate
Fayalite (mol%):39.1±0.3
Ferrosilite (mol%):43.0±1.8
Wollastonite (mol%):8.9±0.8
Classifier:C. Agee, UNM
Type spec mass (g):20.2
Type spec location:UNM
Main mass:Aras Jonikas
Comments:Submitted by C. Agee
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
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 9013 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)

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