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Northwest Africa 14727
Basic information Name: Northwest Africa 14727
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14727
Observed fall: No
Year found: 2021
Country: Western Sahara
Mass:help 1571 g
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 19 Mar 2022
Writeup from MB 111:

Northwest Africa 14727 (NWA 14727)

Western Sahara

Find: 2018 July

Classification: Lunar meteorite (feldspathic breccia)

History: The stone was found near Bir Anzarane in Western Sahara. It was purchased by Stone Gallery (NL; https://www.stonegallery.nl/en/) from a dealer in Morocco.

Physical characteristics: The stone (~15.0 × 15.0 × 10.0 cm) has a rugged surface with cm-sized vugs, dusted by desert soil, and no visible fusion crust. A cut surface exposes a fresh-looking interior. This polymict breccia includes a light-gray matrix with numerous angular or more rounded white to light-gray lithic clasts.

Petrography: (A. Bouvier, UBayr) The polished section consists of lithic clasts and mineral fragments within a clastic to glassy matrix with abundant small vesicles. Clasts are generally angular to more rounded in shape dominated by anorthositic lithologies, and mineral clasts of anorthite, olivine, low-Ca pyroxene with exsolution lamellae, and minor chromite and ilmenite.

Geochemistry: Anorthositic clast: plagioclase An95.2±0.7 (n=8), olivine Fa51.3 (Fe/Mn=85, n=1). Matrix: olivine Fa45.3±5.2 (Fe/Mn= 91±11, n=17), one Fo-rich olivine Fa25.6 (Fe/Mn=101), low-Ca pyroxenes Fs27.3±8.0Wo5.2±2.9 (Fe/Mn=59±10, n=11) with exsolution lamellae of high-Ca pyroxene Fs23.6Wo40.6 (Fe/Mn=46, n=1), and Fs48.2±1.6Wo3.6±2.9 (Fe/Mn=57±8, n=4).

Classification: Lunar (feldspathic breccia)

Specimens: 46.84 g including a polished mount, 40.8 g slice and fragments, and 6.0 g saw dust at UBayr. Stone Gallery holds the main mass.

Data from:
  Table 0
  Line 0:
Origin or pseudonym:Bir Anzarane
Date:2018 July
Mass (g):1571 g
Class:Lunar (feldsp. breccia)
Weathering grade:low
Fayalite (mol%):25.6-53.1
Ferrosilite (mol%):23.6-48.2
Wollastonite (mol%):1.5-8.8, 40.6
Classifier:A. Bouvier, UBayr
Type spec mass (g):46.84g
Type spec location:UBayr
Main mass:Stone Gallery
Comments:UB-2; submitted by A. Bouvier
   and collections
UBayr: Bayerisches Geoinstitut, University of Bayreuth, D-95440 Bayreuth, Germany (institutional address; updated 5 Feb 2020)
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
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Western Sahara

     This is 1 of 259 approved meteorites from Western Sahara (plus 20 unapproved names)

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