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Northwest Africa 14592
Basic information Name: Northwest Africa 14592
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14592
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 8.24 kg
Classification
  history:
Recommended:  Diogenite    [explanation]

This is 1 of 510 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 29 Jan 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14592 (NWA 14592)

(Northwest Africa)

Purchased: 2021

Classification: HED achondrite (Diogenite)

History: Purportedly found in August 2021 in Safia area in Mali.

Petrography: (K. Metzler, IfP) Unbrecciated achondrite (orthopyroxenite) with recrystallized texture, consisting of Ca-poor pyroxene grains (up to ~3 mm in size) with small amounts of olivine and chromium spinel. Accessories are troilite and Ni-free metal. No feldspar was found in the investigated thin section.

Geochemistry: Mineral compositions and geochemistry: Pyroxene composition: Fs23.5±0.5Wo2.1±0.1 (Fs22.7-24.0Wo1.9-2.3); mean Fe/Mn (at.): 30.3; n=15. Olivine composition: Fa26.0±1.3 (Fa24.7-27.5); Fe/Mn (at.): 43.8; n=5. Composition of chromium spinel (atomic): Cr/(Cr+Al)=0.77-0.78; Mg/(Mg+Fe)=0.26-0.29; TiO2=0.8-0.9 wt%; n=3.

Classification: Diogenite, based on texture and mineral compositions.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Mali
Date:P 2021
Mass (g):8235
Pieces:1
Class:Diogenite
Shock stage:U-S1
Weathering grade:low
Fayalite (mol%):26.0±1.3
Ferrosilite (mol%):23.5±0.5
Wollastonite (mol%):2.1±0.1
Classifier:K. Metzler, IfP
Type spec mass (g):20
Type spec location:IfP
Main mass:Mohamed Ali Loud
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 9013 approved meteorites from (Northwest Africa) (plus 1869 unapproved names)

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