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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:
Meteoritical Bulletin:  MB 111  (2023)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 522 approved meteorites (plus 2 unapproved names) 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 Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Photos:
CreditPhotos
Public domain photographs:
Knut Metzler   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9776 approved meteorites from (Northwest Africa) (plus 1862 unapproved names)

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