Meteoritical Bulletin: Entry for Northwest Africa 13498

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Northwest Africa 13498

Basic information

Name: Northwest Africa 13498
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13498
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass: 68.8 g

Classification
history:

Recommended:

L3 [explanation]

This is 1 of 712 approved meteorites (plus 1 unapproved name) classified as L3. [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 2 Nov 2020

Writeup

Writeup from MB 109:

Northwest Africa 13498 (NWA 13498)

(Northwest Africa)

Purchased: 2020 Feb

Classification: Ordinary chondrite (L3)

Petrography: (J. Gattacceca, CEREGE) Chondrite with large, packed, and imbricated chondrules (~700 µm). Opaque minerals are metal and troilite.

Geochemistry: Olivine Fa_17.6±7.8, range Fa_4.2-36.9, Fa PMD = 33%, Cr₂O₃ 0.12±0.17 wt% (n=17). low-Ca pyroxene Fs_11.2±7.1Wo_0.9±0.8, range Fs_2.1-25.8(n=13).

Classification: Ordinary chondrite (L3). Texture reminiscent of "cluster chondrites". L group based on magnetic susceptibility and chondrule size. Estimated subtype 3.2-3.5 based on Fa PMD and Cr₂O₃ content of ferroan olivine.

Data from:
  MB109
  Table 0
  Line 0:

Place of purchase:	Zagora, Morocco
Date:	P 2020 Feb
Mass (g):	68.8
Pieces:	1
Class:	L3
Weathering grade:	W1
Fayalite (mol%):	17.6±7.8 (n=17)
Ferrosilite (mol%):	11.2±7.1 (n=13)
Wollastonite (mol%):	0.9±0.8
Magnetic suscept.:	4.92
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	13.84
Type spec location:	CEREGE
Main mass:	Kuntz
Comments:	work name K493; 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)

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 7547 approved meteorites from (Northwest Africa) (plus 1970 unapproved names)

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