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Northwest Africa 10049
Basic information Name: Northwest Africa 10049
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10049
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass:help 56 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 151 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 7 Apr 2015
Writeuphelp
Writeup from MB 104:

Northwest Africa 10049 (NWA 10049)

(Northwest Africa)

Purchased: 2014

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Eric Twelker from Habib Naji in Morocco, 2014.

Physical characteristics: Single stone. Saw cut shows white feldspathic clasts and a few dark colored clasts set in a dark gray matrix. There a few, very small, metal grains visible.

Petrography: (C. Agee, UNM) This meteorite is a fine-grained, lunar feldspathic regolith breccia with numerous agglutinates, shock melt zones and impact melt clasts present. Many of the agglutinates and melt veins are heavily vesiculated. There are also many fragmental feldspar grains and some microgabbros present, a few of these fragments are up to several mm in size. Accessory Fe-Ni metal, Fe-sulfide, chromite, and ilmenite are present. Weathering products iron oxide, barite, and calcite were detected.

Geochemistry: (C. Agee and N. Muttik, UNM) Olivine Fa31.5±4.9, Fe/Mn=99±9, n=29; forsterite Fa5.8, Fe/Mn=87, n=1; pigeonite Fs26.6±5.5Wo6.0±3.8, Fe/Mn=55±4, n=10; augite Fs22.7±8.2Wo33.1±6.9, Fe/Mn=52±8, n=14; anorthite plagioclase An94.2±2.6Ab5.4±2.5Or0.3±0.2, n=10; labradorite plagioclase An56.3Ab37.1Or6.6, n=1; Shock melt (20 μm defocused electron beam, proxy for bulk meteorite composition): SiO2=44.5±0.8, TiO2=0.25±0.08, Al2O3=31.3±1.9, Cr2O3=0.07±0.01, MgO=3.2±1.8, FeO=3.0±0.4, MnO=0.04±0.02, CaO=17.4±0.4, NiO=0.00±0.00, Na2O=0.55±0.09, K2O=0.07±0.01 (all wt%), n=3.

Classification: Lunar feldspathic regolith breccia

Specimens: 12.4 g including a probe mount on deposit at UNM, Twelker holds the main mass.

Data from:
  MB104
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2014
Mass (g):56
Pieces:1
Class:Lunar (feldsp. breccia)
Shock stage:high
Weathering grade:moderate
Fayalite (mol%):31.5±4.9
Ferrosilite (mol%):26.6±5.5, 22.7±8.2
Wollastonite (mol%):6.0±3.8, 33.1±6.9
Classifier:C. Agee, UNM
Type spec mass (g):12.4
Type spec location:UNM
Main mass:Eric Twelker
Comments:Submitted by C. Agee
Institutions
   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)
Twelker: Eric Twelker, P.O. Box 844, Port Townsend, WA 98368, United States; Website (private address; updated 1 Dec 2014)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6275 approved meteorites from (Northwest Africa) (plus 2026 unapproved names)

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