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Northwest Africa 14695
Basic information Name: Northwest Africa 14695
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14695
Observed fall: No
Year found: 2021
Country: Morocco
Mass:help 510 g
Classification
  history:
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 280 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 13 May 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14695 (NWA 14695)

Morocco

Purchased: 2021

Classification: Lunar meteorite (feldspathic breccia)

History: 72 individual fragments and some smaller part fragments totaling 510 g were purchased by Steve Arnold from a meteorite dealer while visiting Zagora, Morocco, in November 2021.

Physical characteristics: Samples have a gray exterior with white clasts visible. Patches of orange caliche cover some portions of the stone. The interior shows a brecciated texture.

Petrography: Description and classification (A. Love, App). Sample is brecciated mixture of lithic and subrounded to angular mineral clasts of olivine, pyroxene and plagioclase in comminuted matrix. Lithic fragments include: anorthosite, troctolite and glassy breccias. Additional minerals are: ilmenite, chromite, barite, a silica polymorph, spinel, rare FeNi metal.

Geochemistry: (A. Love, App) Olivine (Fa26.5±7.6, Fe/Mn=76.8±4.3, n=4). Some olivine have been altered as indicated by their lower analytical totals of 90-95 wt%. Ca pyroxene (Fs23.7±4.1Wo4.0±0.3, Fe/Mn50.2±1.4, n=4); pigeonite (Fs28.1±4.0Wo19.5±12.2, Fe/Mn=39.4±12.5, n=9); high Ca pyroxene (24.0±4.1Wo33.6±4.8, Fe/Mn=47.9±3.8, n=6); plagioclase (An97.0±0.5Or0.0±0.0, n=9).

Classification: (Lunar feldspathic breccia) Textures, mineral compositions suggest this is a lunar meteorite.

Specimens: Steve Arnold holds the main masses. A polished thin section and many fragments weighing a total of 20.1 g are on deposit at App.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2021
Mass (g):510
Pieces:72
Class:Lunar (feldsp. breccia)
Shock stage:high
Weathering grade:moderate
Fayalite (mol%):26.5±7.6
Ferrosilite (mol%):23.7±4.1; 24.0±4.1
Wollastonite (mol%):4.0±0.3; 33.6±4.8
Classifier:A. Love, App
Type spec mass (g):20.1
Type spec location:App
Main mass:Steve Arnold
Comments:Submitted by Anthony Love
Institutions
   and collections
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1871 approved meteorites from Morocco (plus 24 unapproved names) (plus 1 impact crater)

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