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Northwest Africa 15373
Basic information Name: Northwest Africa 15373
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15373
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 45 kg
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  Lunar (frag. breccia)
Recommended:  Lunar (frag. breccia)    [explanation]

This is 1 of 32 approved meteorites classified as Lunar (frag. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 12 Nov 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15373 (NWA 15373)

(Northwest Africa)

Purchased: 2022

Classification: Lunar meteorite (frag. breccia)

History: Mark Lyon purchased this meteorite from a Moroccan meteorite dealer in 2022.

Physical characteristics: Many identically appearing pieces totaling 45 kg found together. The largest individual piece is 2.6 kg. Dark colored, irregular exterior lacking fusion crust. Saw-cut surface reveals a fragmental breccia with light and dark colored clasts set in a dark-gray groundmass

Petrography: (C. Agee and A. Ross, UNM) Reflected light microscopy and electron microprobe analysis confirms a lunar fragmental breccia with lithic clasts, mineral clasts, and shock melt. Major phases are plagioclase, pigeonite, augite, and olivine. Minor phases include low-Ni iron metal, ilmenite, troilite, chromite, silica and Ti-Cr spinel.

Geochemistry: (A. Ross, UNM) Plagioclase An96.5±0.5Ab3.3±0.5, n=5; pigeonite Fs25.7±6.1Wo5.1±3.0, Fe/Mn=55±6, n=5; augite Fs16.0±2.3Wo36.5±3.4, Fe/Mn=45±4, n=4; olivine Fa28.3±5.4, Fe/Mn=95±11, n=10.

Classification: Lunar fragmental breccia

Specimens: 20.4 g on deposit at UNM, Mark Lyon holds the main mass.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2022
Mass (g):45000
Pieces:Many
Class:Lunar (frag. breccia)
Shock stage:high
Weathering grade:moderate
Fayalite (mol%):28.3±5.4
Ferrosilite (mol%):25.7±6.1, 16.0±2.3
Wollastonite (mol%):5.1±3.0, 36.5±3.4
Classifier:C. Agee, UNM
Type spec mass (g):20.4
Type spec location:UNM
Main mass:Mark Lyon
Comments:Field name ML-41; 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)
Catalogs:
References: Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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    (Caution, these are of unknown reliability)
Austin   
Domjan Svilkovic   
Ryan Upchurch   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
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Revision
  history:
  This lists important revisions made to data for this record.

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