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Northwest Africa 10901
Basic information Name: Northwest Africa 10901
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10901
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 68 g
Meteoritical Bulletin:  MB 105  (2016)  Lunar
Recommended:  Lunar    [explanation]

This is 1 of 107 approved meteorites classified as Lunar.   [show all]
Search for other: Lunar meteorites
Comments: Approved 21 Nov 2016
Writeup from MB 105:

Northwest Africa 10901 (NWA 10901)

(Northwest Africa)

Purchased: 2015

Classification: Lunar meteorite

History: Purchased in 2015 by Brahim Tahiri in Morocco and sent to his partner Sean Tutorow for analysis.

Physical characteristics: Single stone, irregular exterior, no fusion crust. A saw cut reveals light-gray feldspathic clasts (up to 2 cm) and some smaller fragmental white plagioclase grains set in a dark-gray groundmass.

Petrography: (C. Agee, UNM) This is a polymict feldspathic breccia showing several different textural domains: 1) large (centimeter-sized) poikilitic plagioclase with olivine and pyroxene inclusions, 2) zones of fragmental plagioclase, olivine, and pyroxene, 3) cataclastic zones of fine-grained silicates, 4) vesicular shock melt veins and pockets. Iron metal detected, the largest grain observed was ~150 μm in diameter.

Geochemistry: (C. Agee and M. Spilde, UNM) Olivine Fa42.0±13.4, Fe/Mn=98±7, n=6; pigeonite Fs54.7±9.1Wo7.0±2.3, Fe/Mn=63±3, n=5; augite Fs28.7Wo40.3, Fe/Mn=56, n=1; plagioclase An96.6±0.4, n=4; Shock melt (proxy for bulk meteorite composition): SiO2=44.7, TiO2=0.37, Al2O3=24.1, Cr2O3=0.16, MgO=7.2, FeO=7.2, MnO=0.10, CaO=14.7, NiO=b.d.l., Na2O=0.31, K2O=0.02 (all wt%), n=1.

Classification: Lunar meteorite. Intermediate breccia based on FeO and Al2O3 content.

Specimens: 13.76 g including a probe mount on deposit at UNM, Sean Tutorow holds the main mass.

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2015
Mass (g):68.04
Shock stage:high
Weathering grade:moderate
Fayalite (mol%):42.0±13.4
Ferrosilite (mol%):54.7±9.1
Wollastonite (mol%):7.0±2.3
Classifier:C. Agee, UNM
Type spec mass (g):13.76
Type spec location:UNM
Main mass:Sean Tutorow
Comments:Field name G676; submitted by C. Agee, UNM
   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. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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     This is 1 of 9746 approved meteorites from (Northwest Africa) (plus 1866 unapproved names)

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