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Northwest Africa 14755
Basic information Name: Northwest Africa 14755
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14755
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 386 g
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  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 19 Mar 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14755 (NWA 14755)

(Northwest Africa)

Purchased: 2021 Jun

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Jason Whitcomb in June 2021 from an Algerian dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Fine grained breccia composed of numerous small mineral clasts of anorthite, olivine, pigeonite, subcalcic augite and augite, plus some larger basaltic clasts, set in a very fine grained matrix containing troilite, low-Ti chromite and kamacite.

Geochemistry: Olivine (Fa23.0-45.2, FeO/MnO = 85-110, N = 5), pigeonite (Fs31.5-44.8Wo9.3-16.7, FeO/MnO = 52-60, N = 4), subcalcic augite (Fs22.5-35.4Wo27.4-23.4, FeO/MnO = 55-57, N = 2), augite (Fs22.1Wo35.6, FeO/MnO = 52), anorthite (An96.8-97.3Or0.2, N = 3).

Classification: Lunar (feldspathic breccia).

Specimens: 7.42 g including one polished slice at PSF; remainder with Mr. J. Whitcomb.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2021 Jun
Mass (g):386
Pieces:many
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):23.0-45.2
Ferrosilite (mol%):31.5-44.8; 22.5-35.4; 22.1
Wollastonite (mol%):9.3-16.7; 27.4-23.4; 35.6
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):21.3
Type spec location:PSF
Main mass:J. Whitcomb
Comments:Work name JW-68; submitted by A. Irving
Institutions
   and collections		 PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
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)
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 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
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Revision
  history:
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