Meteoritical Bulletin: Entry for Northwest Africa 13493

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Northwest Africa 13493

Basic information

Name: Northwest Africa 13493
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13493
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass: 111.6 g

Classification
history:

Meteoritical Bulletin:	MB 109	(2021)	Eucrite
Recommended:			Eucrite [explanation]

This is 1 of 616 approved meteorites (plus 1 unapproved name) classified as Eucrite. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Comments:

Approved 14 Nov 2020

Writeup

Writeup from MB 109:

Northwest Africa 13493 (NWA 13493)

(Northwest Africa)

Purchased: 2019 Oct

Classification: HED achondrite (Eucrite)

History: Bought from a dealer from northwest Africa.

Petrography: (J. Gattacceca, CEREGE) Igneous rock with doleritic texture. Grain size ~500 μm. Main minerals are low-Ca pyroxene (exsolved) and plagioclase. Other minerals: ilmenite, metal, silica polymorph.

Geochemistry: Low-Ca pyroxene Fs_60.0±0.9Wo_2.1±0.1, FeO/MnO = 33.1±1.4 (n=3). Plagioclase An_88.3Ab_11.2Or_0.5(n=2).

Classification: Achondrite (eucrite).

Data from:
  MB109
  Table 0
  Line 0:

Place of purchase:	Munich, Germany
Date:	P 2019 Oct
Mass (g):	111.6
Pieces:	1
Class:	Eucrite
Ferrosilite (mol%):	60.0±0.9 (n=3)
Wollastonite (mol%):	2.1±0.1
Magnetic suscept.:	2.66
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	20.5
Type spec location:	CEREGE
Main mass:	Kuntz
Comments:	work name K474; submitted by Jérôme Gattacceca

Institutions
and collections

CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 10 Jun 2023)
Kuntz: Fabien Kuntz, France; Website (private address)

Catalogs:

References:

Published in Gattacceca J., McCubbin F. M., Grossman J., Bouvier A., Bullock E., Chennaoui Aoudjehane H., Debaille V., D’Orazio M., Komatsu M., Miao B. and Schrader D. L. (2021) The Meteoritical Bulletin, No. 109. Meteoritics & Planetary Science 56, 1626–1630.

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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Domjan Svilkovic
Ryan Upchurch

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9921 approved meteorites from (Northwest Africa) (plus 1838 unapproved names)

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