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Northwest Africa 15125
Basic information Name: Northwest Africa 15125
     This is a PROVISIONAL name.
     It cannot be used in publications.
Abbreviation: NWA 15125
Observed fall: No
Year found: 2022
Country: Mali
Mass:help 165 g
Classification
  history:
Recommended:  Winonaite    [explanation]

Comments: Entered 14 Sep 2022
Revised 28 Nov 2022: Under reclassification
Writeuphelp
Writeup from MB 111:

Northwest Africa 15125 (NWA 15125)

Mali

Purchased: 2022 Feb

Classification: Primitive achondrite (Winonaite)

History: Found in Mali and purchased by Mbark Arjdal in February 2022 from a Malian dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Protogranular aggregate of forsterite, enstatite, diopside, sodic plagioclase and kamacite, together with accessory chromite and merrillite.

Geochemistry: Forsterite (Fa8.2-8.4, FeO/MnO = 17, N = 3), enstatite (Fs9.1-9.3Wo1.0-1.9, FeO/MnO = 10-11, N = 4), diopside (Fs4.2-4.8Wo42.9-43.9, FeO/MnO = 7-8, N = 4), plagioclase (Ab82.5An13.3Or4.2).

Classification: Winonaite.

Specimens: 22 g including a polished endcut at UWB; remainder with Mr. M. Arjdal.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Mali
Date:P 2022 Feb
Mass (g):165
Pieces:1
Class:Winonaite
Shock stage:low
Weathering grade:low
Fayalite (mol%):8.2-8.4
Ferrosilite (mol%):9.1-9.3; 4.2-4.8
Wollastonite (mol%):1.0-1.9; 42.9-43.9
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):22
Type spec location:UWB
Main mass:M. Arjdal
Comments:Work name Arj ZM 824; submitted by A. Irving
Institutions
   and collections
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
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Geography:

Mali
Coordinates:Unknown.

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