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Northwest Africa 14905
Basic information Name: Northwest Africa 14905
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14905
Observed fall: No
Year found: 2021
Country: Algeria
Mass:help 2.93 kg
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  Lunar (frag. breccia)
Recommended:  Lunar (frag. breccia)    [explanation]

This is 1 of 33 approved meteorites classified as Lunar (frag. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 9 May 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14905 (NWA 14905)

Algeria

Find: 2020

Classification: Lunar meteorite (frag. breccia)

History: Reportedly found in the desert west of Fenoghil, Algeria, in 2020. Purchased by Jay Piatek from Cheikh El Fakraoui a meteorite dealer in Morocco in 2021.

Physical characteristics: Four identical appearing pieces found together. Dark colored, irregularly shaped, with smooth sandblasted patina. Saw cut surface shows a very dark groundmass with fine-grained gray and white clasts many of which are angular.

Petrography: (A. Ross, C. Agee, UNM; D. Dickens, NMMS) Electron microprobe analysis indicates a lunar polymict breccia with clasts of minerals and rocklets. Major phases in descending order of modal abundance are plagioclase (57±2%), pyroxene (29±5%), olivine (8±2%). Minor phases Cr-spinel, ilmenite, troilite, merrillite, augite and zirconolite were detected. Zirconolite has REEs detectable with the electron microprobe. Vesicles occur throughout.

Geochemistry: (A. Ross, UNM) Plagioclase An95.4±4.8Ab4.4±4.6, n=6; olivine Fa29.4±17.9, Fe/Mn=87±7, n=12; pigeonite Fs30.5±8.3Wo9.7±6.0, Fe/Mn=57±7, n=11.

Classification: Lunar polymict fragmental breccia

Specimens: 23.6 g on deposit at UNM, Jay Piatek holds the main mass of 2782 g.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Morocco
Date:2020
Mass (g):2928
Pieces:4
Class:Lunar (frag. breccia)
Shock stage:high
Weathering grade:moderate
Fayalite (mol%):29.4±17.9
Ferrosilite (mol%):30.5±8.3
Wollastonite (mol%):9.7±6.0
Classifier:C. Agee, UNM
Type spec mass (g):23.6
Type spec location:UNM
Main mass:Jay Piatek
Comments:Fieldname JP-4008; 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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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1358 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)
Also see:
  This lists the most popular meteorites among people who looked up this meteorite.
Revision
  history:
  This lists important revisions made to data for this record.

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