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Northwest Africa 15372
Basic information Name: Northwest Africa 15372
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15372
Observed fall: No
Year found: 2022
Country: Northwest Africa
Mass:help 264 g
Classification
  history:
Recommended:  Acapulcoite    [explanation]

This is 1 of 88 approved meteorites classified as Acapulcoite.   [show all]
Search for other: Acapulcoite-lodranite family, Acapulcoites, and Primitive achondrites
Comments: Approved 27 Nov 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15372 (NWA 15372)

Northwest Africa

Purchased: 2022

Classification: Primitive achondrite (Acapulcoite)

History: Purchased by Mark Lyon from a Moroccan meteorite dealer in 2022.

Physical characteristics: Single stone mostly covered with smooth, dark-colored fusion crust. There are also patches of orange-brown colored patina.

Petrography: (A. Ross and C. Agee, UNM) Recrystallized granoblastic texture with triple junctions between olivine, pyroxenes, and plagioclase. Most silicate grains are in the size range 200-300 microns. Kamacite makes up approximately 5% of this meteorite. Troilite and chromite are ubiquitous minor phases. Vesicular fusion crust is approximately 500 microns thick.

Geochemistry: (A. Ross, UNM) Olivine Fa11.1±0.1, Fe/Mn=21±1, n=6; low-Ca pyroxene Fs10.2±0.2Wo1.6±0.3, Fe/Mn=13±1, n=3; high-Ca pyroxene Fs4.2±0.1Wo44.8±0.9, Fe/Mn=9±1, n=3; plagioclase An12.2±0.1Ab82.3±0.1, n=4; fusion crust SiO2=43.2±1.0, TiO2=0.16±0.02, Cr2O3=0.29±0.01, Al2O3=2.6±0.1, FeO=22.4±1.8, MnO=0.39±0.02, MgO=25.0±0.9, CaO=3.3±0.3, NiO=0.40±0.25, Na2O=0.88±0.10, K2O=0.11±0.01 (all wt%), n=3.

Classification: Primitive achondrite (Acapulcoite)

Specimens: 20.5 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):264
Pieces:1
Class:Acapulcoite
Shock stage:low
Weathering grade:low
Fayalite (mol%):11.1±0.1
Ferrosilite (mol%):10.2±0.2, 4.2±0.1
Wollastonite (mol%):1.6±0.3, 44.8±0.9
Classifier:C. Agee, UNM
Type spec mass (g):20.5
Type spec location:UNM
Main mass:Mark Lyon
Comments:field name HN-2032; 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. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is the only approved meteorite from Northwest Africa

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