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Northwest Africa 14594
Basic information Name: Northwest Africa 14594
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14594
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 29 g
Classification
  history:
Recommended:  Lunar (melt breccia)    [explanation]

This is 1 of 10 approved meteorites classified as Lunar (melt breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 29 Jan 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14594 (NWA 14594)

(Northwest Africa)

Purchased: 2021

Classification: Lunar meteorite (melt breccia)

Petrography: (K. Metzler, IfP) Achondritic breccia, consisting of lithic clasts (up to 10 mm) and mineral fragments (plagioclase, Ca-poor and Ca-rich pyroxenes, and olivine) set in a partly vesicular crystallized melt. Lithic clast are mainly subrounded fragments of clast-rich melt brecias. Accessories are ilmenite and troilite.

Geochemistry: Mineral compositions and geochemistry: Ca-poor pyroxene: Fs30.2±3.0Wo7.5±1.3 (Fs23.7-33.6Wo4.7-8.8); mean Fe/Mn (at.): 59.1; n=8. Ca-rich pyroxene: Fs18.0±1.8Wo32.6±1.2 (Fs16.7-19.3Wo31.8-33.5); mean Fe/Mn (at.): 51.5; n=2. Olivine: Fa37.5±0.3 (Fa37.1-37.9); mean Fe/Mn (at.): 103.8; n=9. Plagioclase An96.7±0.8Or0.1±0.1 (An95.9-98.8Or0.0-0.4); n=13.

Classification: Lunar (melt breccia), based on texture and mineral chemistry

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2021
Mass (g):29
Pieces:1
Class:Lunar (melt breccia)
Shock stage:M-S3
Weathering grade:high
Fayalite (mol%):37.5±0.3
Ferrosilite (mol%):30.2±3.0
Wollastonite (mol%):7.5±1.3
Classifier:K. Metzler, IfP
Type spec mass (g):5.9
Type spec location:IfP
Main mass:Space Rocks, Ewa and Uwe Eger, Bochum, Germany
Comments:Submitted by K. Metzler, IfP
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
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Photos:
CreditPhotos
Public domain photographs:
Knut Metzler   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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