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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:
Meteoritical Bulletin:  MB 111  (2023)  Acapulcoite
Recommended:  Acapulcoite    [explanation]

This is 1 of 92 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 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: 
Coordinates:Unknown.

Statistics:
     This is the only approved meteorite from Northwest Africa
Also see:
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Revision
  history:
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