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Northwest Africa 14088
Basic information Name: Northwest Africa 14088
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14088
Observed fall: No
Year found: 2021
Country: Mali
Mass:help 2.7 kg
Classification
  history:
Recommended:  Lunar (troct. anorth.)    [explanation]

This is 1 of 3 approved meteorites classified as Lunar (troct. anorth.).   [show all]
Search for other: Lunar meteorites
Comments: Approved 24 Jul 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14088 (NWA 14088)

Mali

Purchased: 2021

Classification: Lunar meteorite (troctolitic anorthosite)

History: Reportedly found in 2019 in the vicinity of Taoudenni, Mali. Purchased by Jay Piatek from a meteorite dealer in January 2021.

Physical characteristics: Single, flight-oriented stone, with fluted regmaglypts. The stone appears to have been partially buried for some time in the desert as approximately half of the it has sandblasted smooth dark fusion crust while the other half has fresher, greenish fusion crust with some caliche coating. A broken surface on the deposit sample reveals a white to light-gray interior with numerous dark colored glassy melt veins.

Petrography: (C. Agee, UNM) This meteorite is a fine-grained anorthositic troctolite (Prinz and Keil, 1977) with plagioclase (~75%), olivine (~15%), and pigeonite (~10%) as dominant silicate phases. There are numerous shock melt veins present, most with abundant vesicles.

Geochemistry: (A. Ross, UNM) Plagioclase An96.5±0.8Ab3.5±0.8Or0.0±0.0, n=4; olivine Fa28.8±3.5, Fe/Mn=94±8, n=6; pigeonite Fs22.9±1.5Wo13.3±2.9, Fe/Mn=50±6, n=5; augite Fs13.3Wo38.7, Fe/Mn=43, n=1; shock melt (20 μm defocused electron beam, proxy for bulk meteorite composition): SiO2=43.9±0.2, TiO2=0.16±0.01, Al2O3=30.2±0.4, Cr2O3=0.07±0.01, MgO=4.6±0.3, FeO=3.8±0.2, MnO=0.04±0.01, CaO=16.9±0.2, NiO=0.02±0.03, Na2O=0.39±0.01, K2O=0.03±0.00 (all wt%), Fe/Mn=103±20, n=3.

Classification: Lunar (troctolitic anorthosite) based on Stoeffler et al. (1980)).

Specimens: 45.1 g on deposit at UNM, Jay Piatek holds the main mass.

Bibliography:
  • Stoeffler D., Knoell H.-D., Marvin U.B., Simonds C.H., and Warren, P.H. (1980) Recommended classification and nomenclature of lunar highland rocks - A committee report. In: Conference on the Lunar Highlands Crust, Houston, Tex., November 14-16, 1979, Proceedings. (A81-26201 10-91) New York and Oxford, Pergamon Press, 1980, p. 51-70. (link)
Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Mauritania
Date:P 2021
Mass (g):2702
Pieces:1
Class:Lunar (troct. anorth.)
Shock stage:high
Weathering grade:low
Fayalite (mol%):28.8±3.5
Ferrosilite (mol%):22.9±1.5
Wollastonite (mol%):13.3±2.9
Classifier:C. Agee, UNM
Type spec mass (g):45.1
Type spec location:UNM
Main mass:Jay Piatek
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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Mali
Coordinates:Unknown.

Statistics:
     This is 1 of 51 approved meteorites from Mali (plus 1 unapproved name)

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