Meteoritical Bulletin: Entry for Northwest Africa 14050

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Northwest Africa 14050

Basic information

Name: Northwest Africa 14050
This is an OFFICIAL meteorite name.
Abbreviation: NWA 14050
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass: 69.6 g

Classification
history:

Meteoritical Bulletin:	MB 110	(2022)	Lunar (feldsp. breccia)
Recommended:			Lunar (feldsp. breccia) [explanation]

This is 1 of 336 approved meteorites classified as Lunar (feldsp. breccia). [show all]
Search for other: Lunar meteorites

Comments:

Approved 6 Jul 2021

Writeup

help

Writeup from MB 110:

Northwest Africa 14050 (NWA 14050)

(Northwest Africa)

Purchased: 2020 Dec

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Tom Thiegs in December 2020 from a Moroccan dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed of relatively small mineral clasts of anorthite, olivine, low-Ca pyroxene, subcalcic augite, augite, subcalcic ferroaugite plus rare microgabbroic lithic clasts set in a sparse fine-grained matrix containing accessory ilmenite, zircon, Ti-chromite, troilite, baddeleyite and minor secondary barite. Phases observed in BSE, from dark to bright: Ca pyroxene (Fe-rich), ilmenite, zirconolite (Y, REE present), baddeleyite, monazite (Ce>La)

Geochemistry: Olivine (Fa_24.6-55.3, FeO/MnO = 89-104, N = 5), low-Ca pyroxene (Fs_31.7-50.5Wo_2.3-4.0, FeO/MnO = 55-61, N = 3), subcalcic augite (Fs_21.7Wo_31.3, FeO/MnO = 48), subcalcic ferroaugite (Fs_61.8Wo_31.2, FeO/MnO = 74), augite (Fs_14.3Wo_42.9, FeO/MnO = 56), anorthite (An_96.5-98.6Or_0.1-0.0, N = 3).

Classification: Lunar (feldspathic breccia).

Specimens: 14.58 g including one polished thin section at UWB; remainder with Mr. T. Thiegs.

Data from:
  MB110
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P 2020 Dec
Mass (g):	69.6
Pieces:	1
Class:	Lunar (feldsp. breccia)
Shock stage:	low
Weathering grade:	low
Fayalite (mol%):	24.6-55.3
Ferrosilite (mol%):	31.7-50.5; 21.7-61.8; 14.3
Wollastonite (mol%):	2.3-4.0; 31.2-31.3; 42.9
Classifier:	A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):	14.6
Type spec location:	UWB
Main mass:	T. Thiegs
Comments:	Work name TGT002; 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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)

Catalogs:

References:

Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

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Revision
history:

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