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Northwest Africa 14593
Basic information Name: Northwest Africa 14593
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14593
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 438 g
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  Aubrite
Recommended:  Aubrite    [explanation]

This is 1 of 83 approved meteorites classified as Aubrite.   [show all]
Search for other: Achondrites, Aubrites, Enstatite achondrites, and Enstatite-rich meteorites
Comments: Approved 29 Jan 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14593 (NWA 14593)

(Northwest Africa)

Purchased: 2021

Classification: Enstatite achondrite (Aubrite)

History: Purportedly found in 2021 in an area called Bouagba, in the west of the city Oum el Assel.

Petrography: (K. Metzler, IfP) Unbrecciated achondrite (orthopyroxenite), consisting of nearly iron-free pyroxene (enstatite) with grain sizes up to ~8 mm. Accessories are diopside and (strongly altered) daubreelite (up to 4 mm in size). Feldspar and olivine were not found in the investigated thin section.

Geochemistry: Mineral compositions and geochemistry: Low-Ca pyroxene composition: Fs0.2±0.2Wo0.9±0.1 (Fs0.0-0.5Wo0.6-1.0); n=12. High-Ca pyroxene composition: Fs0.2±0.1Wo43.3±1.8 (Fs0.0-0.5Wo41.0-46.7); n=12.

Classification: Aubrite, based on texture and mineral chemistry.

Specimens: Largest piece: 104 g

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Mauritania
Date:P 2021
Mass (g):438
Pieces:Many
Class:Aubrite
Shock stage:U-S3
Weathering grade:high
Ferrosilite (mol%):0.2±0.2
Wollastonite (mol%):0.9±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
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Sans   
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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