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Northwest Africa 14042
Basic information Name: Northwest Africa 14042
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14042
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 459 g
Classification
  history:
Recommended:  Winonaite    [explanation]

This is 1 of 74 approved meteorites classified as Winonaite.   [show all]
Search for other: Primitive achondrites, Winonaites
Comments: Approved 6 Jul 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14042 (NWA 14042)

(Northwest Africa)

Purchased: 2021 Mar

Classification: Primitive achondrite (Winonaite)

History: Purchased by Rachid Chaoui in March 2021 from a Mauritanian dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Triple grain junction texture. Composed of forsterite, diopside, enstatite and sodic plagioclase together with accessory kamacite, taenite, troilite and chlorapatite.

Geochemistry: Forsterite (Fa4.0-4.3, FeO/MnO = 16-20, N = 4), diopside (Fs1.4-1.8Wo44.9-45.7, FeO/MnO = 9-12, N = 4), enstatite (Fs4.8-4.9Wo1.8-2.0, FeO/MnO = 11-14, N = 4), plagioclase (Ab75.4-76.0An20.8-21.0Or3.7-3.0, N = 2).

Classification: Winonaite.

Specimens: 20.6 g including one polished endcut at UWB; remainder with Mr. R. Chaoui.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Mauritania
Date:P 2021 Mar
Mass (g):459
Pieces:2
Class:Winonaite
Shock stage:low
Weathering grade:low
Fayalite (mol%):4.0-4.3
Ferrosilite (mol%):4.8-4.9; 1.4-1.8
Wollastonite (mol%):1.8-2.0; 44.9-45.7
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):20.6
Type spec location:UWB
Main mass:R. Chaoui
Comments:Work name RC145.2; 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. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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