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Northwest Africa 14323
Basic information Name: Northwest Africa 14323
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14323
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 52 g
Classification
  history:
Recommended:  Lunar (troct)    [explanation]

This is 1 of 3 approved meteorites classified as Lunar (troct).   [show all]
Search for other: Lunar meteorites
Comments: Approved 5 Dec 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14323 (NWA 14323)

(Northwest Africa)

Purchased: May, 2021

Classification: Lunar meteorite (troctolite)

History: The meteorite was purchased from a group of meteorites hunters in Nouadhibou, Mauritania in May, 2021.

Physical characteristics: Light grayish to slightly greenish rock without fusion crust.

Petrography: Brecciated highly shocked troctolite predominantly composed of olivine, low-Ca pyroxene, and plagioclase crystals with highly variable grain sizes ranging from 20 µm to 1.8 mm. Minor phases are chromite, ilmenite, FeS, and kamacite. The meteorite contains abundant shock veins and plagioclase has been transformed into maskelynite.

Geochemistry: olivine: Fa20.9±1.1 (Fa19.7-22.6, FeO/MnO=90±5, n=18); magnesian olivine: Fa13.2±0.1 (Fa13.1-13.4, FeO/MnO=85±10, n=12); low-Ca pyroxene: Fs17.9±1.3Wo3.6±0.9 (Fs16.2-19.6Wo2.9-5.4, FeO/MnO=52±5, n=16); calcic plagioclase: An96.7±0.5 (An96.2-98.0, n=12)

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Nouadhibou, Mauritania
Date:P May, 2021
Mass (g):52
Pieces:1
Class:Lunar (troct)
Shock stage:high
Weathering grade:moderate
Fayalite (mol%):20.9; 13.2
Ferrosilite (mol%):17.9
Wollastonite (mol%):3.6
Classifier:A. Greshake, MNB
Type spec mass (g):11.6
Type spec location:MNB
Main mass:Salamu Ali
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8136 approved meteorites from (Northwest Africa) (plus 1942 unapproved names)

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