Meteoritical Bulletin: Entry for Northwest Africa 13497

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Northwest Africa 13497

Basic information

Name: Northwest Africa 13497
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13497
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass: 528 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 13497 (NWA 13497)

(Northwest Africa)

Purchased: 2020 Feb

Classification: HED achondrite (Eucrite)

Petrography: (J. Gattacceca, CERGE) Igneous rock with subophitic texture. Typical grain size ~ 500 (up to 1.5 mm). Main minerals are pyroxene (some exsolved) and plagioclase. Other minerals: chromite, ilmenite, rare metal, troilite.

Geochemistry: Pyroxenes: low-Ca pyroxene Fs_41.3±0.8Wo_4.0±1.3, FeO/MnO = 28.9±2.2 (n=4). Plagioclase An_92.7Ab_6.9Or_0.4(n=1).

Classification: Achondrite (eucrite).

Data from:
  MB109
  Table 0
  Line 0:

Place of purchase:	Tindouf, Algeria
Date:	P 2020 Feb
Mass (g):	528
Pieces:	5
Class:	Eucrite
Ferrosilite (mol%):	41.3±0.8 (n=4)
Wollastonite (mol%):	4.0±1.3
Magnetic suscept.:	2.43
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	21.6
Type spec location:	CEREGE
Main mass:	Kuntz
Comments:	work name K492; 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)
Robert Smart
Ryan Upchurch

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9914 approved meteorites from (Northwest Africa) (plus 1841 unapproved names)

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