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:

Recommended:

Eucrite [explanation]

This is 1 of 569 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.:	3.24
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 29 Oct 2018)
Kuntz: Fabien Kuntz, France; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 109, in preparation (2020)

Find references in NASA ADS:
Find references in Google Scholar:

Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Robert Smart

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names)

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