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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:
Recommended:  Aubrite    [explanation]

This is 1 of 76 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 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 8636 approved meteorites from (Northwest Africa) (plus 1884 unapproved names)

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