Meteoritical Bulletin: Entry for Northwest Africa 13504

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Northwest Africa 13504

Basic information

Name: Northwest Africa 13504
This is an OFFICIAL meteorite name.
Abbreviation: NWA 13504
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass: 74.1 g

Classification
history:

Meteoritical Bulletin:	MB 109	(2021)	L3.10
Recommended:			L3.10 [explanation]

This is 1 of 10 approved meteorites classified as L3.10. [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 14 Nov 2020

Writeup

Writeup from MB 109:

Northwest Africa 13504 (NWA 13504)

(Northwest Africa)

Purchased: 2019 Oct

Classification: Ordinary chondrite (L3.10)

History: Bought from a dealer from northwest Africa.

Physical characteristics: Single oriented stone.

Petrography: (J. Gattacceca, CEREGE) Chondrite with packed large and well-delineated chondrules (average apparent diameter 730±340 μm, n=43). Opaque minerals are metal and troilite.

Geochemistry: Olivine Fa_20.2±14.3, Fa PMD = 61% (n=15), Cr₂O₃ in ferroan olivine 0.28±0.21 wt% (n=14). Low-Ca pyroxene Fs_14.3±9.9Wo_2.0±2.1(n=16).

Classification: Ordinary chondrite L3.10. Likely L group based on magnetic susceptibility interpreted in the light of weathering grade and chondrule size. Subtype based on Cr₂O₃ content of ferroan olivine.

Specimens: Type specimen at CEREGE. Main mass with Kuntz.

Data from:
  MB109
  Table 0
  Line 0:

Place of purchase:	Munich, Germany
Date:	P 2019 Oct
Mass (g):	74.1
Pieces:	1
Class:	L3.10
Weathering grade:	W3
Fayalite (mol%):	20.2±14.3 (n=15)
Ferrosilite (mol%):	14.3±9.9 (n=16)
Wollastonite (mol%):	2.0±2.1
Magnetic suscept.:	4.24
Classifier:	J. Gattacceca, CEREGE
Type spec mass (g):	17.6
Type spec location:	CEREGE
Main mass:	Kuntz
Comments:	work name K472; 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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Geography:

Coordinates:

Unknown.

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

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