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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:help 69.6 g
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 315 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 6 Jul 2021
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 (Fa24.6-55.3, FeO/MnO = 89-104, N = 5), low-Ca pyroxene (Fs31.7-50.5Wo2.3-4.0, FeO/MnO = 55-61, N = 3), subcalcic augite (Fs21.7Wo31.3, FeO/MnO = 48), subcalcic ferroaugite (Fs61.8Wo31.2, FeO/MnO = 74), augite (Fs14.3Wo42.9, FeO/MnO = 56), anorthite (An96.5-98.6Or0.1-0.0, N = 3).

Classification: Lunar (feldspathic breccia).

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

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2020 Dec
Mass (g):69.6
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
   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)
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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     This is 1 of 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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